NYTimes: ... Within 18 months, Cates went from routinely losing at local $5 games to winning at the highest stakes of online poker for anywhere between $10,000 and $500,000 per night. In 2010, his reported $5.5 million in online earnings was more than $1 million higher than the nearest competitor. Unlike other young poker millionaires who make the bulk of their money by winning televised tournaments — a proposition that, because of the high number of players and the unpredictability of their actions, involves roughly the same amount of luck as winning a small lottery — Cates earned his stake by grinding, the term used to describe the process of pressing a skill advantage over an extended period of time. Because poker is a game of high variance, where a significant difference in ability can be mitigated by a bad run of cards, a player’s Expected Value (E.V.) must be actualized over thousands of hands. Every year, a few dozen kids go on hot streaks and take a shot at the big time. Almost invariably, these kids are eventually ground down by higher caliber players. What made Cates’s run different wasn’t his total winnings or the speed with which he earned his millions. What caught the attention of the poker world was that the 20-year-old top online earner of 2010 won almost all of his money in head-to-head confrontations with poker’s elite.
The gospel of E.V. that keeps the poker hierarchy in order was shaken. Cates had taken on all comers in 2010, including highly publicized matches against top-flight pros like Phil Ivey, Patrik Antonius, Ilari (Ziigmund) Sahamies and his fellow young gun Tom (durrrr) Dwan. Each of these men has helped turn poker into a multimillion-dollar celebrity enterprise. Each ranks among the 20 or so most recognized players in the world. And in each of his matches with poker royalty, Cates came out hundreds of thousands of dollars ahead.
... The vast sums of money shuttled among the accounts of these young professionals — and the shocking aggressiveness and recklessness with which they played — deepened the divide between the young online players and the older guard who earned their millions when poker was still a game played by men sitting around a table. Since the rise of online poker in the early 2000s, every principle of the game, every lesson learned over hundreds of thousands of hours of play, every simple credo uttered in some old Western gambling movie — all those tersely stated, manly things that made up the legend of poker — has been picked apart and, for the most part, discarded.
Patience is no longer rewarded. If an 18-year-old online whiz can play 12 hands at once, then by his 19th birthday, he is no less experienced than a career gambler who has sat for a dozen years at the big-money table at the Bellagio. It didn’t take long before the young players began crushing established gamblers online, and the question rang out across the poker world: How were these kids, many of whom were too young to set foot inside a casino, outsharking the sharks?
In Command and Conquer, the video game that consumed much of Cates’s childhood, a player leads an army into a real-time battle. The combat units are vaguely futuristic and highly specialized. Success depends on the efficiency with which a player can build his resources and the speed with which he can deploy them. It is a difficult game to play and an even harder game to master. The best players develop a predatory instinct for detecting the exact moment when an opponent has weakened. High-end strategy combines lightning-fast reflexes, unabashed aggression and razor-thin resource management. Reckoning comes by way of particle cannon. By the age of 15, Cates told me repeatedly, he was one of the world’s best Command and Conquer players.
Phil Gordon, a 40-year-old poker professional who has won $3 million in tournaments, written three best-selling books and hosted several TV shows, including Bravo’s Celebrity Poker Showdown, says he believes that the early and immersive training offered by video games, paired with online poker’s increasing space in the mainstream, has laid out a practice ground for a militia of young, fearless, invincible players. “The prototypical successful young gun is fast and unpredictable,” Gordon says. “Those traits make them nearly impossible to beat, especially when playing at warp speeds. The manual dexterity required to play 12 or even 16 or 20 tables at one time is enormous. The mental dexterity required to play well while making that number of decisions in a very short amount of time is even more impressive. Many of the video games the kids grew up with like Command and Conquer or Call of Duty required a similar dexterity and gave these kids a leg up — the more tables they could play accurately, the more decisions they got to make, and the quicker they were able to learn.”
Then there’s the fact that high-stakes poker rewards aggression. A player who cannot fire off a bluff because he is worried about his daughter’s private-school tuition will be quickly run over by the players who don’t have such concerns. While heightened dexterity, comfort with snap decisions and the stamina gained from years spent sitting in front of a computer screen give the young online pro an edge over his older counterpart, the greatest benefit borne from a life spent playing video games lies somewhere in the strange, disconnected relationship between what is simulated and what is real. The armies of Command and Conquer do not suffer real casualties. An unsuccessful session of Minesweeper does not result in the loss of a leg.
In online poker, lost money registers only as debits in the player’s offshore account. When a player loses a million-dollar pot, the action plays out in cartoon animation.
“Most of us young kids who play at nosebleed stakes don’t really have any clear idea about the actual value of the money we win or lose,” Cates says. “Most of us see the money more as a points system. And because we’re all competitive, we want to have the highest score. But really, we don’t know what making $400,000 or losing $800,000 means, because we don’t have families or whatever. This blind spot gives us the freedom to always make the right move, regardless of the amount at stake, because our judgment isn’t clouded by any possible ramifications.”
It is unclear whether Cates actually does understand that the money is real. On the second day of my visit, we took a trip to Best Buy. Cates had grown bored of playing poker and wanted to buy a video game. As we stood in the PS3 aisle, discussing which games looked good, I asked him if he had ever walked into a store like Best Buy — or perhaps a car dealership — and thought to himself, Hey, I can buy out this entire place. Cates smiled sheepishly. He said: “I’m not really into material wealth. Plus, I need to save up some more money. My fiscal goal for 2011 is to reach $10 million in liquid cash.” I asked what the difference might be between $5 million and $10 million, especially for a 21-year-old whose relative spending habits sit somewhere on the line between modest and monastic. He explained: “You can do anything with $10 million. Like, you can buy a house and still have around $5 million left over.”
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Sunday, March 27, 2011
Poker prodigies
Video game training allows younger players to take on a dozen tables at a time in online poker? This seems harder than a simul in chess, where a master can "chunk" the position on the board quickly. If there are many players at each of those dozen tables the poker genius has to keep track of perhaps 30 or 50 hands at a time, and the psychological profile of each of those players. The guy in the article seems to be doing this with the help of software. How long until it's all bots, all the time?
Saturday, March 26, 2011
Pebble bed reactors

The problems at Fukushima got me thinking about pebble bed reactors, described in the WIRED magazine article below. It would be very sweet to have a reactor that self-regulates its temperature in event of catastrophe. Here is a recent NYTimes article.
WIRED: ... Beneath its cavernous main room are the 100 tons of steel, graphite, and hydraulic gear known as HTR-10 (i.e., high-temperature reactor, 10 megawatt). The plant's output is underwhelming; at full power - first achieved in January - it would barely fulfill the needs of a town of 4,000 people. But what's inside HTR-10, which until now has never been visited by a Western journalist, makes it the most interesting reactor in the world.
In the air-conditioned chill of the visitors' area, a grad student runs through the basics. Instead of the white-hot fuel rods that fire the heart of a conventional reactor, HTR-10 is powered by 27,000 billiards-sized graphite balls packed with tiny flecks of uranium. Instead of superhot water - intensely corrosive and highly radioactive - the core is bathed in inert helium. The gas can reach much higher temperatures without bursting pipes, which means a third more energy pushing the turbine. No water means no nasty steam, and no billion-dollar pressure dome to contain it in the event of a leak. And with the fuel sealed inside layers of graphite and impermeable silicon carbide - designed to last 1 million years - there's no steaming pool for spent fuel rods. Depleted balls can go straight into lead-lined steel bins in the basement.
... The key trick is a phenomenon known as Doppler broadening - the hotter atoms get, the more they spread apart, making it harder for an incoming neutron to strike a nucleus. In the dense core of a conventional reactor, the effect is marginal. But HTR-10's carefully designed geometry, low fuel density, and small size make for a very different story. In the event of a catastrophic cooling-system failure, instead of skyrocketing into a bad movie plot, the core temperature climbs to only about 1,600 degrees Celsius - comfortably below the balls' 2,000-plus-degree melting point - and then falls. This temperature ceiling makes HTR-10 what engineers privately call walk-away safe. As in, you can walk away from any situation and go have a pizza.
... If Wu's pebble-bed "thing" is, well, hot, it's because Chinergy's product is tailor-made for the world's fastest-growing energy market: a modular design that snaps together like Legos. Despite some attempts at standardization, the latest generation of big nukes are still custom-built onsite. By contrast, production versions of INET's reactor will be barely a fifth their size and power, and built from standardized components that can be mass-produced, shipped by road or rail, and assembled quickly. Moreover, multiple reactors can be daisy-chained around one or more turbines, all monitored from a single control room. In other words, Tsinghua's power plants can do the two things that matter most amid China's explosive growth: get where they're needed and get big, fast.
See also here. Unfortunately I believe the S. African project has run out of money.
... In the event of a complete shutdown of helium flow in the pebble bed, the temperature would rise at most to 2,900°F, a level well below the thermal limit of the graphite pebbles. At the higher temperature, the more plentiful uranium-238 nuclei absorb more neutrons (due to an effect called Doppler broadening) and the reactor output decreases, lowering the reactor temperature until an equilibrium is reached. The reactor heat is transferred passively by radiation, conduction, and natural convection to the steel reactor vessel, which is designed to reject the heat without human intervention.
Thursday, March 24, 2011
Duty, Honor, Country: Fukushima grunts
The grunts at Fukushima are not doing it for money. No "Yeah, I calculated the NPV, and, you know, it's just not worth it for me. I really believe in your project, though. And, I share your passion. Good luck."
Are these values unique to the Japanese? No, many Americans would do the same.
WSJ: ... In normal times, thousands of workers perform routine tasks of reactor maintenance at the Fukushima Daiichi complex. Now, many of them are being called to volunteer to work, at standard pay, at the troubled plant.
"I'm scared," says Kenji Tada, 29 years old, a worker at protective-coating specialist Tokai Toso Co. "But someone has to go."
... "There isn't a single person who's been doing this because of money,'' says Tadashi Ikeda, senior managing director of Tokai Toso. Plenty of workers are locals who have been forced out of their homes by the radiation levels and are eager to help get things back to normal, he adds.
Mr. Tada says he typically earns about ¥200,000 ($2,470) a month, well below Japan's average monthly salary of ¥291,000. "It can't be helped," he says, adding his mother doesn't want him to go. "Someone has to do it."
... Radiation managers at Tepco take readings at the places where they want to send each day's workers. Shifting winds and leaks from unstable reactors have meant radiation levels in the complex have veered wildly in the space of hours, and hot spots move from one area to another.
Workers wear protective gear and a mask and must have had training in dealing with radioactive environments. Each person also wears two badges, in chest pockets under gear, to track radiation exposure on each visit. Each worker is limited to a total of 250,000 microsieverts for the duration of the crisis, a limit that was lifted last week from 100,000 microsieverts—the borderline for what is considered "low-dose" exposure.
Mr. Tada says colleagues already at the site have told him they were exposed to around 100 microsieverts of radiation after five hours of work, an amount equivalent to one chest X-ray. That is less than the 190 microsieverts Mr. Tada says he logged in four hours of work one recent day, before the crisis.
Not everyone is so sanguine. At the Saitama Super Arena, a stadium north of Tokyo that has been converted into a refugee shelter for people forced from towns near the Fukushima plant, Mitsuyoshi Oigawa says his son was among those asked to return.
Mr. Oigawa says the call came six days after the quake struck and that his son will likely work at the plant for two or three days. Mr. Oigawa says he has tried without success to call his son's cellphone since then. He worries that radiation exposure could sicken his son.
"There's no way to express what I'd do for him," says Mr. Oigawa, 70. "I'd go in his place if I could."
In an evacuee camp in the city of Tamura, about 20 miles west of the Fukushima Daiichi complex, another worker for a nuclear-equipment maker says he got his call to report for duty earlier this week. The man says he thinks he will be carrying and laying pipes that will bring water to reactor No. 3.
The high-school graduate, whose salary is similar to Mr. Tada's, says he was told he could refuse the call. But he says he felt duty-bound to accept, musing that he would be in the position of sacrificing himself for the good of others, as he says Japanese pilots did in World War II suicide missions. "If the call comes, there's only one thing I can say: 'Yes, I'll go.' I thought of the kamikaze—sacrificing yourself for someone else," he says. "My heart is calm."
Are these values unique to the Japanese? No, many Americans would do the same.
Douglas MacArthur (1962, West Point): ... Duty, Honor, Country: Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. They are your rallying points: to build courage when courage seems to fail; to regain faith when there seems to be little cause for faith; to create hope when hope becomes forlorn.
Unhappily, I possess neither that eloquence of diction, that poetry of imagination, nor that brilliance of metaphor to tell you all that they mean.
The unbelievers will say they are but words, but a slogan, but a flamboyant phrase. Every pedant, every demagogue, every cynic, every hypocrite, every troublemaker, and I am sorry to say, some others of an entirely different character, will try to downgrade them even to the extent of mockery and ridicule.
...
The soldier, above all other men, is required to practice the greatest act of religious training -- sacrifice.
In battle and in the face of danger and death, he discloses those divine attributes which his Maker gave when he created man in his own image. No physical courage and no brute instinct can take the place of the Divine help which alone can sustain him.
However horrible the incidents of war may be, the soldier who is called upon to offer and to give his life for his country is the noblest development of mankind.
...
The shadows are lengthening for me. The twilight is here. My days of old have vanished, tone and tint. They have gone glimmering through the dreams of things that were. Their memory is one of wondrous beauty, watered by tears, and coaxed and caressed by the smiles of yesterday. I listen vainly, but with thirsty ears, for the witching melody of faint bugles blowing reveille, of far drums beating the long roll. In my dreams I hear again the crash of guns, the rattle of musketry, the strange, mournful mutter of the battlefield.
But in the evening of my memory, always I come back to West Point.
Always there echoes and re-echoes: Duty, Honor, Country.
Today marks my final roll call with you, but I want you to know that when I cross the river my last conscious thoughts will be of The Corps, and The Corps, and The Corps.
Almost over? part 2
Are further price declines in the cards? If you think there's some inflation around the corner (say in the next few years), now might be a good time to lever up and buy some real estate.
Here's an interesting figure from a recent paper by Case, Quigley and Shiller. The paper is primarily about wealth effects, but it has some nice panel data. They find that the wealth effect is stronger for housing than for equity assets.

Here is a video from the Financial Times discussing the paper and recent housing data.
More discussion and figures like the one below in this earlier post.
Here's an interesting figure from a recent paper by Case, Quigley and Shiller. The paper is primarily about wealth effects, but it has some nice panel data. They find that the wealth effect is stronger for housing than for equity assets.

Here is a video from the Financial Times discussing the paper and recent housing data.
More discussion and figures like the one below in this earlier post.
Sunday, March 20, 2011
What is reality? Philip K. Dick
I found this via longform.org. Much more here. Was Dick schizo?
Has anyone read The Grasshopper Lies Heavy? :-)
This appears to be the full text of The Man in the High Castle.
Has anyone read The Grasshopper Lies Heavy? :-)
The God In the Trash: The Fantastic Life and Oracular Work of Philip K. Dick.
Alexander Star The New Republic Dec 6 1993
Dick grew up with his mother on the fringes of Berkeley's fledgling bohemia. A troubled student, he was often "hypochondriacal about his mental condition," as one of his wives later put it. And like many troubled boys of the time, he became a voracious reader of the science fiction pulp magazines that were then at their peak. In Confessions of a Crap Artist, a novel written in 1959, he wryly portrayed himself as an awkward kid spouting oddball ideas from Popular Mechanics and adventure stores: "Even to look at me you'd recognize that my main energies are in the mind."
... Throughout his career Dick longed for a wider audience, and sought to escape the science fiction ghetto. He envied writers such as Ursula Le Guin, who acquired a serious reputation and was even published in The New Yorker. His readers, he complained, were "trolls and wackos." In the '50s and early '60s, he wrote a series of non-science fiction novels, all of which were rejected by publishers at the time. These books were mainly somber tales of thwarted love in northern California, peopled with cranky record salesmen and bitter couples and narrated in a glumly painstaking fashion. On the whole, their vision of domestic life is an unhappy one. In Confessions of a Crap Artist, an accumulation of errant jealousies and petty insults leads to illness and insanity. The novel ridicules the newly formed UFO cults of Marin County, though years later Dick reflected that the cults "didn't seem as crazy to me now ..."
Rebuffed by "mainstream" publishers, Dick abandoned his realist writings in 1963. By then he had discovered a different way out of the Ace formula: he would transform the genre of science fiction from within. Concerned with psychic dislocation, and its moral and philosophical consequences, he began to ignore the expectations of his editors. In particular, he disregarded the most honored conventions of "hard s.f.," that science fiction should be rigorously "extrapolative" of hard science, and that it should be "prophetic" of plausible futures.
... Philip Dick's fictional worlds have a great many attributes, but sanity is not among them. Campbell, the monarch of postwar science fiction, refused to publish his stories because they were "too neurotic." In his preoccupation with abnormal psychology, collective delusions and implanted memories, Dick in part followed the path of irregular science fiction writers of the '50s such as A.E. van Vogt and Theodore Sturgeon. Yet he ranged further in his subversions. Dick continued to rely on the ready-made materials of science fiction, the pulp prose, the planetary conflicts, the "psionic" powers of "precogs" (who read the future) and "telepaths" (who read minds); but he employed these materials to his own extravagant ends.
... Dick's biggest literary advance came in 1962, when he published The Man in the High Castle. This study of an alternate universe in which the Axis won the Second World War was entirely devoid of the usual sci-fi devices. ("No science in it," a character observes. "Nor set in future.") Mr. Tagomi, a Japanese bureaucrat and connoisseur of American antiques, is one of Dick's most sympathetic characters. Repelled by international intrigue and devoted to the occult beauty of old bottle caps and cheap jewelry, he resists Nazi brutality with a fragile but steady will. After Bormann dies, a power struggle breaks out among the remaining Nazi leaders (Hitler has long since entered a sanitarium) and Tagomi unhappily plays one faction off against another, aware that they are all unspeakably evil. Ingeniously, the book contains its own counterfiction: in this America divided into German and Japanese zones, rumors spread of an incendiary novel speculating that the allies actually won the war. The narrative adroitly maneuvers back and forth between these two competing accounts of what is real. The Man in the High Castle was Dick's most assured and subtle work, and he hoped it would win him a wider audience. He was chagrined when reviewers treated it as just another thriller. Ironically, it was the science fiction community that celebrated the book, bestowing the Hugo Award on it in 1963.
In the early '80s Dick's hopes for renown revived, as younger writers arrived at his doorstep, royalties increased and German, French and Japanese editions of his work proliferated. Back in the early '70s he had optioned his 1968 novel Do Androids Dream of Electric Sheep? to Hollywood; by 1980 the producers of the film promised that it would be the next Star Wars. (Dick hoped that Victoria Principal would have a starring role.) In fact, Blade Runner was a commercial disappointment in its initial release. But Dick never knew of its early unsuccess. In March 1982, he died of a stroke after proudly attending an advance screening of the movie. ...
Dick explored the problem of decency in a dead world most forcefully in Do Androids Dream of Electric Sheep? Rick Deckard is a bounty-hunter, paid to track down and destroy a party of androids that has infiltrated the planet. Deckard employs an "empathy" test that records his subjects' responses to unpalatable thoughts of cruelty and death; the test can distinguish between androids and their identical-looking human counterparts. The typical Dickian twist comes when Deckard, unlike one of his partners, begins to empathize with the androids that he kills. Does this mean that he might be an android himself, or does his powerful feeling of empathy confirm precisely that he is human? Deckard investigates incidents of empathy with the care of an experienced detective, but he cannot take anything for granted. The special horror of his work is that a sudden "flattening of affect" might occur at any time, to others or to himself. The practice of empathy is fragile, uncertain and imperative. ...
This appears to be the full text of The Man in the High Castle.
Saturday, March 19, 2011
Wellesley girls
I've spent some time at Wellesley. The first visit was on a tour of east coast grad schools with some other Caltech guys. A family friend (she turned out to be a charming southern belle from Arkansas) at Wellesley arranged for us to camp out in sleeping bags on an indoor balcony in her residence hall. Pretty amazing, when you think about it. My memory is fuzzy but I think showering was a bit of a challenge. Men were not allowed to move from floor to floor without an escort. "Horizontal motion, but no vertical motion" was the slogan :-) My girlfriend at the time was a student at Scripps College, an all-women's school in Claremont, California. So I was pretty familiar with the scene ... sadly, not quite as salacious as the article below makes it out to be.
I wonder what happened to all the girls we met on that trip.
Rolling Stone Magazine: ... As a visiting student from Wheaton College studying at Wellesley College in Wellesley, Massachusetts, for one year, Ross enjoys the unique position of being the lone full-time male student at an all-women’s school. “I really don’t have to introduce myself too often,” he says. It’s established wisdom on campus that the “token guy” who comes to Wellesley every few years will get as much attention as he can handle. David Kent, who spent a year at Wellesley in the late Seventies, wrote about the experience for Esquire: “I became incapable of talking to a girl without thinking how much she craved me and what she’d be like in the sack.” He dated three women a night, he writes, and rarely slept in his own room. Neil Schiavo, a Connecticut College graduate who spent part of the 1994-95 academic year at Wellesley, says, “The first week, it took me forty minutes to get to classes because people were so friendly. I felt like in this one little area in the world, I was Tom Cruise.”
Ross won’t put a number on how many Wellesley students he’s slept with, but admits he’s been dating “a lot.” One group of students placed bets on who could sleep with Ross, and there was also an informal competition to see who could get him into bed first. “Wellesley women are different from other women,” Ross says. “They plan everything out in their heads.” ...
... “It was a challenge to be straight at a school like that,” says Melanie Herman, a 1999 graduate who now works on Wall Street. So women at Wellesley who do choose to date men but have given up on the “Fuck Truck”—the student nickname for bus that runs to Harvard and MIT, both about forty-five minutes away—have to find whoever is available. The most alluring candidates are the professors. Different academic departments have different reputations. “Some of the departments are a little racy and some are a little more tame,” says senior Sandra North. “Some professors are notorious for having sex with their students. Everyone knows who they are.”
Understandably, professors are not cheered by the sometimes unkind stories that are spread about them. “I knew a guy who used to pick up a baby sitter on campus, and people said he was picking her up for a date,” says professor Aaron Girard, “And it wasn’t anything like that. So you can get injustice done pretty easily.” Many of the rumors are completely untrue, he points out—although he admits he has had relationships with students. “I’ve heard rumors about me and several students that had no basis in fact whatsoever,” Girard says. “And the one that was true, no one knew about.”
For a straight male professor, a women’s college offers obvious temptations. In every class, there are at least a few admirers, especially if he has that “professor sex appeal.” And having that appeal doesn’t necessarily mean he’s good-looking—indeed, says a student, many of the most sought-after professors “definitely do not fall into the good-looking category.” ...
Jon Jones, phenom
Watch this great profile of 23 year old MMA phenom Jon Jones, who will fight Shogun Rua for the LHW (205) title later today.
Anyone who has watched Jones fight knows he is incredibly talented. His background is wrestling -- he gave up a scholarship to Iowa State when he started his pro career. I notice he hits a lot of Judo throws in his fights. Most fans think those are greco throws but they aren't -- he's using his legs, which is illegal in greco. When I investigated this, expecting to find that he had trained in Judo as many wrestlers have, I was amazed to discover that he taught himself using internet videos!
Las Vegas Sun: ... Widely regarded as an unorthodox and unpredictable fighter, Jones has built his style based on what he's learned in the gym from instructors and what he's taught himself using methods like YouTube.
While it's known that Jones comes from a Greco-Roman wrestling background, he's evolved that style into his own by combining it with moves he's picked up from studying judo on the Internet.
"A lot of the moves I'm performing aren't actually Greco-Roman, they're judo," Jones said. "You can't use a trip in Greco-Roman. I don't have an official judo coach but I've been, it sounds weird, getting on the Internet and watching a lot of Judo moves. I take it seriously."
This highlight video shows some nice throws, including by Jones.
Is Jones ready for Rua? The biggest question in my mind is whether Rua is fully recovered from knee surgery. If he is, he could give Jones a tough fight, maybe even a beatdown. Rua is a legend, but are his best days behind him? This is one of the most exciting match ups in some time.
Friday, March 18, 2011
Nuclear Boy is sick
Some videos to take us into the weekend here in Asia.
Nuclear Boy
And two more just for fun...
J.R. Oppenheimer
Mario Savio
Nuclear Boy
And two more just for fun...
J.R. Oppenheimer
Mario Savio
Wednesday, March 16, 2011
Fukushima meltdown: worst case scenario?
UK government Chief Scientific Officer Professor John Beddington comments on the developments at Fukushima nuclear plant. I hope he is correct.
If the Japanese fail to keep the reactors cool and fail to keep the pressure in the containment vessels at an appropriate level, you can get this, you know, the dramatic word "meltdown." But what does that actually mean? What a meltdown involves is the basic reactor core melts, and as it melts, nuclear material will fall through to the floor of the container. There it will react with concrete and other materials that is likely.
Remember this is the reasonable worst case, we don't think anything worse is going to happen. In this reasonable worst case you get an explosion. You get some radioactive material going up to about 500 meters up into the air. Now, that's really serious, but it's serious again for the local area. It's not serious for elsewhere, even if you get a combination of that explosion it would only have nuclear material going in to the air up to about 500 meters.
If you then couple that with the worst possible weather situation, i.e. prevailing weather taking radioactive material in the direction of Greater Tokyo and you had maybe rainfall which would bring the radioactive material down, do we have a problem? The answer is unequivocally no. Absolutely no issue.
The problems are within 30 km of the reactor. And to give you a flavor for that, when Chernobyl had a massive fire at the graphite core, material was going up not just 500 meters but to 30,000 feet; it was lasting not for the odd hour or so but lasted months, and that was putting nuclear radioactive material up into the upper atmosphere for a very long period of time. But even in the case of Chernobyl, the exclusion zone that they had was about 30 kilometers. And in that exclusion zone, outside that, there is no evidence whatsoever to indicate people had problems from the radiation.
The problems with Chernobyl were people were continuing to drink the water, continuing to eat vegetables and so on and that was where the problems came from. That's not going to be the case here. So what I would really reemphasize is that this is very problematic for the area and the immediate vicinity and one has to have concerns for the people working there. Beyond that 20 or 30 kilometers, it's really not an issue for health.
Tuesday, March 15, 2011
Buffet on derivatives
Transcript of Buffet's recent interview with the Financial Crisis Inquiry Commission.
My very first post (2004) on this blog was about Fannie Mae's use of derivatives accounting to smooth earnings.
NYTimes: ... “If I look at JPMorgan, I see two trillion in receivables, two trillion in payables, a trillion and seven netted off on each side and $300 billion remaining, maybe $200 billion collateralized,” he said, walking through his thinking. “That’s all fine. But I don’t know what discontinuities are going to do to those numbers overnight if there’s a major nuclear, chemical or biological terrorist action that really is disruptive to the whole financial system.”
“Who the hell knows what happens to those numbers?” he asked. “I think it’s virtually unmanageable.”
Mr. Buffett defended Berkshire Hathaway’s use of derivatives, arguing that the company maintains a limited amount. At the time of the interview, the company had only about 250 derivative contracts. (It’s now down to 203.) “I want to know every contract, and I can do that with the way we’ve done it. But I can’t do it with 23,000 that a bunch of traders are putting on.”
... when Berkshire bought General Re in 1998, the reinsurance company had 23,000 derivative contracts. “I could have hired 15 of the smartest people, you know, math majors, Ph.D.’s. I could have given them carte blanche to devise any reporting system that would enable me to get my mind around what exposure that I had, and it wouldn’t have worked,” he said to the government panel. “Can you imagine 23,000 contracts with 900 institutions all over the world with probably 200 of them names I can’t pronounce?” Berkshire decided to unwind the derivative deals, incurring some $400 million in losses.
... Perhaps the most insightful nugget in the interview was Mr. Buffett’s explanation of why corporations use derivatives — and why they probably shouldn’t.
Many companies, as diverse as Coca-Cola and Burlington Northern, argue that they employ derivatives to hedge their risk. The United States-based Coca-Cola tries to protect against fluctuations in currencies since it does business around the world. Burlington Northern, the railroad giant, uses the investments to limit the impact of fuel prices.
Mr. Buffett, who has interests in both companies, claimed there was another agenda. “The reason many of them do it is that they want to smooth earnings,” he said, referring to the idea of trying to make quarterly numbers less volatile. “And I’m not saying there’s anything wrong with that, but that is the motivation.”
The numbers all even out eventually, he cautioned, so derivatives don’t really make much difference in the long term.
“They’re going to lose as much on the diesel fuel contracts over time as they make,” he said of Burlington Northern. “I wouldn’t do it.”
My very first post (2004) on this blog was about Fannie Mae's use of derivatives accounting to smooth earnings.
Thursday, March 10, 2011
Taiwan photos 11
A new restaurant in our complex.



We're at a beach resort on the southernmost tip of Taiwan right now.







We're at a beach resort on the southernmost tip of Taiwan right now.




Tuesday, March 08, 2011
Tigers, cubs, and elite clubs
Steve Sailer points me to some excellent essays in the Atlantic on Amy Chua, Tiger Moms, elite college obsession, and the not so hidden group competition just below the surface of our smoothly functioning meritocracy. Before we get to the essays, here's something from the comment thread of Steve's post:
"It's not so much upper class whites that are aghast at Chua. Most upper class whites send their kids to the State Universities and don't have that much academic inclination anyway. Trust me, as someone that lives in an upper middle class white area, I can tell you that their kids don't think Ivy. Not unless the kid plays lacrosse or does crew.
Chua's detractors aren't WASPs - they're mostly Jewish women. Partly it's because Chua's kids are taking Ivy League spots from their kids. Partly it's also because Chua embodies that overbearing Jewish mother that they grew up [with] and refutes the modern liberal Jewish-American parenting style. Jewish mothers are feeling guilty that they're not preparing their kids to battle with the Tiger cubs."
Sandra Tsing-Loh on Amy Chua.
Atlantic: ... But of course, sometimes children—particularly those from cultures in which children are not routinely given names such as “Harvard Wong”—fail in spite of their parents’ diligent efforts. Amid the debate within elite motherdom about Chua’s book, it’s far too easily forgotten that the professional class tends to have a blind spot. Clearly, Yale law professors who write books on economies in developing-world nations do not often ride the bus in America’s cities, for there they might see, as I once did, a Guatemalan maid earnestly working with her son on his math homework and, heartbreakingly, giving him all the wrong answers. (But, my Credit Suisse tablemate would say, he won’t go to Harvard, because she didn’t READ to him! She didn’t READ to him!)
... I do admire Chua’s fortitude, being the sort of lax, self-loathing parent who kicks herself for letting her children be exposed to all the standard Western evils. Just last week, my 8-year-old, Suzy, saw Yogi Bear in 3-D (starring Justin Timberlake as Boo Boo), played a computer game in which she clipped a dog’s toenails, and watched back-to-back reruns of the less-than-elevating Damon Wayans family sitcom, My Wife and Kids. While watching the show and cackling with hilarity, Suzy finished completing her extra-credit report “OWLS by Suzy.” Sample passage:
Some things that I know about owls are that they have large eyes, a large head, and that they are carnivores. Owls come in all different colors, shapes, sizes and they all have a different name. For example the Barn owl, the Elf owl, the Great Horned owl, and the Snowy owl, they all come from the same family, THE OWLS! Okay, that is pretty much all I know about OWLS.
Just having finished Chua’s book, I stared at the page, wondering, She’s only 8, but still, isn’t this … terrible? Why are our kids so cheerfully lazy? Then again, how much should I care?
Because as much as I cavil about Chua’s fears of generational decline, I admit that my own murky hopes for my kids are even more open to question. Truth be told, I am not sure what I want for them. Harangued by my own Tiger Dad, I grew up believing in crack math skills and followed—at least initially—a stereotypical Chinese path of acing my tests; getting into the world’s most prestigious science university, Caltech (early admission, no less); majoring in the hardest, most rarefied subject, physics … And then what? Almost 50 years old now, some 30 years after graduation, I look at my Caltech classmates and conclude that math whizzes do not take over the world. The true geniuses—the artists of the scientific world—may be unlocking the mysteries of the universe, but the run-of-the-mill really smart overachievers like me? They’re likely to end up in high-class drone work, perfecting new types of crossword-puzzle-oriented screen savers or perhaps (really) tweaking the computer system that controls the flow in beer guns at Applebee’s. ...
Caitlin Flanagan, the author of the essay excerpted below, was once a college counselor at Harvard-Westlake, an elite private school in Southern California.
Atlantic: ... The good mothers went to Brown, and they read The Drama of the Gifted Child, and they feel things very deeply, and they love their children in a way that is both complicated and primal, and they will make any sacrifice for them. They know that it takes a lot of time to nurture and guide a child—and also that time is fleeting, and that the bliss of having your kids at home is painfully short-lived—and so most of them have cut back on their professional aspirations in significant ways. The good mothers have certain ideas about how success in life is achieved, and these ideas have been sizzled into their brains by popularizers such as Joseph Campbell and Oprah Winfrey, and they boil down to this: everyone has at least one natural talent (the good mothers call it a “passion”), and creativity, effortless success, and beaucoup dinero flow not from banging your head against the closed door of, say, organic chemistry if you’re not that excited by it, but from dwelling deeply and ecstatically inside the thing that gives you the most pleasure. But you shouldn’t necessarily—or under any circumstances, actually—follow your bliss in a way that keeps you out of Yale. Because Yale is important, too! So important. The good mothers believe that their children should be able to follow their passions all the way to New Haven, Connecticut, and this obdurate belief of theirs is the reason so many of them (Obama voters, Rosa Parks diorama co-creators, gay-rights supporters, champions, in every conceivable way, of racial diversity and tolerance) are suddenly ready to demand restoration of the Chinese Exclusion Act. Because Amy Chua has revealed, in so many blunt and horrifying words, why the good mothers are getting spanked, and why it’s only going to get worse. ...
AND ALL OF this brings us to the reason the good mothers are so furious at Amy Chua; not, really, because she has been harsh to her children. If anything, these revelations have given the good mothers something to feel better about; they would never treat their sweet children like that. Rather, they are angry because her harshness is going to rob their own children of something they fiercely want for them. They want the situation to change in their favor, but in fact the trend is against them. One of the reasons that Western, white parents of today remember an easier admissions environment at the top schools is that in their era, the schools held a dismissive attitude toward Asian students. When the U.S. Department of Education’s Office for Civil Rights investigated the Harvard admissions office in the late 1980s and early ’90s, it found evidence, if not of quotas, then at least of condescension toward the group. “Typical of other Asian applications,” said a handwritten note on one file; “classic VN [Vietnamese] bootstrap case,” said another. Chastened, the schools made a determined effort to read the files of Asian applicants as thoughtfully as they read those of white students. I would wager that the majority of the Asian American kids who apply to elite colleges are not marked for any kind of preferential treatment, and are therefore disproportionately represented in the group of applicants who are going to be judged purely on academic merit. Their ability to dominate in this category means that the Asian threat, as perceived by cheesed-off white professional-class parents, is in fact higher than their worst suspicions.
Chua has accepted, in a way that the good mothers will not, that most children today can’t have it both ways: they can’t have a fun, low-stress childhood and also an Ivy League education. She understood early on—as the good mothers are about to learn, when the heartbreaking e-mails and letters from the top colleges go out this month—that life is a series of choices, each with its own rewards and consequences. In a sense, that is the most unpalatable message of her book, the one that has caused all the anguish: it’s an unwelcome reminder (how can we keep forgetting this?) that the world really doesn’t lie before us like a land of dreams. At best—at the very best—it can only offer us choices between two good things, and as we grasp at one, we lose the other forever.
Flanagan is a bit too optimistic about the treatment that Asian applicants now receive from elite admissions offices. Why you should be suspicious of what the elite schools are up to, despite official statements (from an earlier post):
OCR = Department of Education's Office of Civil Rights, which conducted an investigation of anti-Asian bias in Harvard admissions around 1990.
The Chosen, p.510: ... Asian Americans had the highest SATs of all [among groups admitted to Harvard]: 1450 out of a possible 1600. In 1991 the Asian-American/white admission ratio [ratio of percentages of applicants from each group admitted] stood at 84 percent -- a sharp downturn from 98 percent in 1990, when the scrutiny from OCR was at its peak. Though [this ratio] never dropped again to the 64 percent level of 1986, it never returned to its 1990 zenith. Despite Asian Americans' growing proportion of the national population, their enrollment also peaked in 1990 at 20 percent, where it more or less remained until 1994. ... by 2001 it had dropped below 15 percent.
So the "subjective but fair" measures used in admissions resulted in a record high admit rate for Asians during the year Harvard was under investigation by the federal government. But mysteriously the admit rate (relative to that of white applicants) went down significantly after the investigation ended, and the overall Asian enrollment has not increased despite the increasing US population fraction of Asians.
My take on Amy Chua here.
Social Animals
The WSJ reviews David Brooks' new book The Social Animal. I discussed an excerpt which appeared in the New Yorker in this earlier post. David Brooks is in danger of becoming the new Malcolm Gladwell: watch out for sloppy thinking, confirmation bias, and pandering to populist sentiments :-(
WSJ: ... In "The Social Animal," Mr. Brooks avoids the challenge of imitating the master by reviving an older form: the 18th-century didactic narrative, epitomized by Rousseau's "Emile." Rather than dig up true stories, he writes one from scratch, and it's not bad. His main characters are Harold and his wife and business partner, Erica. The plot extends all the way from the day Harold's parents meet to the day Harold dies, yet it takes place in a perpetual present-day America.
The chapters are at once chronological and thematic, tackling an array of topics, like learning (a high-school teacher sparks Harold's intellectual curiosity), social norms (Erica has youthful troubles with authority figures), morality (Erica sleeps with a business leader whom she admires), politics (Harold and Erica work for a presidential candidate), and retirement (they move to Aspen and start a tour business).
[See earlier post for more on Harold, Erica, and their Aspen encounter with the Caltech neuroscientist.]
Mr. Brooks is at his best as a social observer, documenting the changing patterns of contemporary life. He showed that talent in "Bobos in Paradise" (2000)—a modern classic that deconstructed every signifier of millennial upper-class life, from Restoration Hardware catalogs to New York Times wedding announcements. Several passages in "The Social Animal" made me think that Mr. Brooks had been glancing through my own windows or fishing from the banks of my own stream of consciousness.
As in "Bobos," he shows genius in sketching archetypes and coining phrases. Here we learn of the "composure class" (who earn their money "by climbing the meritocratic ladder of success"), "sanctimommies" (mothers who critique their peers' parenting skills) and "extracurricular sluts" (kids who participate in too many organized after-school activities).
... If this story is meant to illustrate a broader point, it must be that "cognitive intelligence" and "emotional intelligence" have an inverse relationship: The brilliant are more likely than the average to be socially awkward. But this is nothing but the stereotype that forms the premise of "The Big Bang Theory" and other pop-culture narratives. In reality, tests of emotional intelligence correlate positively with IQ tests.
But Mr. Brooks makes an even bigger claim: Not only is intelligence not connected to social skill; it's not connected to much of anything. "Once you get past some pretty obvious correlations (smart people make better mathematicians), there is a very loose relationship between IQ and life outcomes." This conclusion misstates the science. To reach it Mr. Brooks has to commit a variety of statistical errors and tiptoe through a minefield of contradictory evidence.
First, he notes that studies selecting a group of high-IQ kids and tracking them over decades have failed to identify future Pulitzer or MacArthur winners. He also cites Mr. Gladwell's "Outliers" to note that American science Nobelists "did not mostly go to Harvard and MIT."
[Never rely on Gladwell in statistical matters. Instead, see here and here.]
The problems here include the tiny sample sizes, the shaky assumption that prize juries (and elite universities) make decisions based only on merit, and the focus on the tails of a distribution (here, the highest extremes of intelligence and academic achievement), which is the method guaranteed to tell you the least about the characteristics that matter across the whole range of human ability. To dismiss IQ testing as invalid because it can't pick out the minuscule minority that will attain world-wide fame is to confuse a positive correlation with a perfect one. Only oracles have perfect records of prophecy, and surely no one desires a world in which IQ tests are that good.
[Using a quick IQ screen at age 17 probably allows you to identify future scientific leaders with 100 times better accuracy than chance, and future business leaders with 5-10 times better accuracy than chance. This follows immediately from (soft) 99+ and 90th percentile IQ thresholds. That is, the fraction of people in each of the two categories that is below the given threshold is very small. See links above.]
Next Mr. Brooks cites a study that found "no correlation between accumulating large wealth and high IQ." But in fact, IQ (measured in high school) was almost the best predictor of wealth (measured in early middle age) in this study's own data set. Its author did show that if you consider only people matched in education, income and other variables, then intelligence is unrelated to wealth. But this is hardly a surprise, since education and income themselves both correlate with IQ. In other words, if you look only at, say, high earners with graduate degrees, you will see that the smartest ones are no richer than the dumbest ones, but you will have learned nothing about the true relationship between intelligence and success.
Similarly, Mr. Brooks describes research showing that, during the dot-com bubble, the average investor in many mutual funds lost money by trading in and out too much, when the investor could have made money by just sitting tight. Such people acted "self-destructively because of their excessive faith in their intelligence," he says. Surely intelligent people can do stupid things. But where is the evidence that intelligence or intellectual arrogance was correlated with bad decisions, let alone caused them? The mutual-fund study said nothing about whether more intelligent investors were more overconfident, or traded more, than less intelligent investors.
In fact, studies that do measure both intelligence and economic outcomes find positive relationships. When you consider that IQ can be measured well in half an hour, these effects are surprisingly large: A random person with above-average intelligence has about a two-thirds chance of being above average in income, compared with a one-third chance for a random person of below-average intelligence.
The research that Mr. Brooks minimizes or ignores does not, of course, prove that intelligence is the only relevant trait for success. A host of "noncognitive" skills, many of which Mr. Brooks explains well, are undoubtedly important. But there is no need to tear down intelligence in order to build up the rest.
Even if differences in intelligence explain 25% of the differences among people in how well they perform at work (a much better estimate than the low-ball 4% cited by Mr. Brooks), there is still three times as much territory left to be mapped out. Surely that's plenty of space for researchers to investigate the role of social acumen, mindset, culture, self-control and much else. A thousand flowers can bloom.
At one point, Mr. Brooks veers into odd territory. Economists and political scientists, he writes, assume that "human beings are pretty much the same. . . . This assumption makes social science a science. If behavior is not governed by immutable laws and regularities," he writes, "then quantitative models become impossible. The discipline loses its predictive value." Perhaps this is an allusion to traditional theories in these fields that neglected differences between people for the sake of mathematical simplicity. But the claim is badly out of date. In fact, human homogeneity is neither an assumption in today's social science nor a requirement of the scientific method. It's ironic that Mr. Brooks neglects the abundant evidence for a key source of differences among people—their genes—which influence their personalities, decisions and achievements.
Mr. Brooks would have also done well to suspend his disbelief when his sources talked about brain research. "When stock traders experience a series of good days, the dopamine released into their brains creates a surge of overconfidence," he writes. He cites only a blog post for this claim. Most of the sources in "The Social Animal" are secondary ones, usually books for a general audience. Without information about the primary sources—like journal articles that report methods and results—it is hard to trust that the science is being communicated and interpreted fairly. In the case of the traders hopped up on dopamine, the story sounds good but the necessary experiments just haven't been done.
In "The Social Animal" Mr. Brooks surveys a stunning amount of research and cleverly connects it to everyday experience. The lessons he draws are often insightful, but they are not reliably correct. Perhaps experiencing his own surges of dopamine and overconfidence, he too often abandons his stance of "epistemological modesty" and instead peddles frothy notions that probably won't last long. But in observing the broader trends of social science—and of contemporary life—he gets a lot right. His own achievement here signals a plateau in the market for social science, not a peak.
Monday, March 07, 2011
Almost over?
What's a factor of 2 between friends? :-) Note no long term appreciation of houses relative to CPI.

Here's Japan for comparison. Our bubble has popped much more quickly.

Yes, Virginia, we knew it was a bubble back in 2005, but no one believed us. Next time, watch the price to rent ratio:

Yes, equities beat housing over the long run, and even at the peak of the biggest housing bubble of the 20th century.
Here's Japan for comparison. Our bubble has popped much more quickly.
Yes, Virginia, we knew it was a bubble back in 2005, but no one believed us. Next time, watch the price to rent ratio:
Yes, equities beat housing over the long run, and even at the peak of the biggest housing bubble of the 20th century.
Saturday, March 05, 2011
Classics on the arxiv: von Neumann and the foundations of quantum statistical mechanics
Kudos to people who have been posting classic (old) papers on the arxiv.
I was very impressed by recent work (see references below) using entanglement and concentration of measure in high dimensions (Levy's lemma) to show that a subsystem of a larger quantum system will display "equilibrium" properties as long as the larger system is in a "typical" state. (An overall constraint on the system, e.g., on its energy, is assumed.) Typicality is defined with respect to the usual Hilbert space measure. The remaining question in my mind, which I mulled over casually the past few years, was whether there existed ergodic theorems showing that under Schrodinger evolution a system would spend almost all of its time in a typical state (there is a simple argument that suggests this is the case; it is a much harder problem to obtain sharp estimates of equilibration times). As I suspected, but failed to confirm even after getting a few books out of the library***, vN had already established this result (and, perhaps, most of the recent results!) in 1929 :-)
To overstate: vN had forgotten (by dying) more about the foundations of stat mech than the rest of the community remembered! Yet another example of (highly) nonlinear returns to brainpower in mathematical and physical sciences.
S. Popescu, A. J. Short, A. Winter: Entanglement and the foundation of statistical mechanics. Nature Physics 21(11): 754–758 (2006); N. Linden, S. Popescu, A. J. Short, A. Winter: Quantum mechanical evolution towards thermal equilibrium. Physical Review E 79: 061103 (2009) http://arxiv.org/abs/0812.2385.
Sadly, in our era of specialization these deep foundational issues tend to be of little interest to most physicists.
*** To be precise I found only discussions formulated in terms of coarse grained phase space -- individual (dQ, dP) cells -- as opposed to a more fundamental pure state description of the system. The connection between these pictures is provided by vN in the (now translated) paper linked to above. I believe I actually saw a reference to this paper, but had no idea how to find an English version of it :-)
Proof of the Ergodic Theorem and the H-Theorem in Quantum Mechanics 1003.2133See also this related article
John von Neumann
It is shown how to resolve the apparent contradiction between the macroscopic approach of phase space and the validity of the uncertainty relations. The main notions of statistical mechanics are re-interpreted in a quantum-mechanical way, the ergodic theorem and the H-theorem are formulated and proven (without "assumptions of disorder"), followed by a discussion of the physical meaning of the mathematical conditions characterizing their domain of validity.
Comments: English translation by Roderich Tumulka of J. von Neumann: Beweis des Ergodensatzes und des H-Theorems. 41 pages LaTeX, no figures; v2: typos corrected.
Long-Time Behavior of Macroscopic Quantum Systems: Commentary Accompanying the English Translation of John von Neumann's 1929 Article on the Quantum Ergodic Theorem 1003.2129I've had a long interest in the foundations of statistical mechanics. vN's paper is very clear and better than any of the textbook treatments I have seen. I wish I had had access to it as a student! The paper by Goldstein et al. is also excellent and summarizes some history and connections to current research.
Sheldon Goldstein, Joel L. Lebowitz, Roderich Tumulka, Nino Zanghi
The renewed interest in the foundations of quantum statistical mechanics in recent years has led us to study John von Neumann's 1929 article on the quantum ergodic theorem. We have found this almost forgotten article, which until now has been available only in German, to be a treasure chest, and to be much misunderstood. In it, von Neumann studied the long-time behavior of macroscopic quantum systems. While one of the two theorems announced in his title, the one he calls the "quantum H-theorem", is actually a much weaker statement than Boltzmann's classical H-theorem, the other theorem, which he calls the "quantum ergodic theorem", is a beautiful and very non-trivial result. It expresses a fact we call "normal typicality" and can be summarized as follows: For a "typical" finite family of commuting macroscopic observables, every initial wave function $\psi_0$ from a micro-canonical energy shell so evolves that for most times $t$ in the long run, the joint probability distribution of these observables obtained from $\psi_t$ is close to their micro-canonical distribution.
I was very impressed by recent work (see references below) using entanglement and concentration of measure in high dimensions (Levy's lemma) to show that a subsystem of a larger quantum system will display "equilibrium" properties as long as the larger system is in a "typical" state. (An overall constraint on the system, e.g., on its energy, is assumed.) Typicality is defined with respect to the usual Hilbert space measure. The remaining question in my mind, which I mulled over casually the past few years, was whether there existed ergodic theorems showing that under Schrodinger evolution a system would spend almost all of its time in a typical state (there is a simple argument that suggests this is the case; it is a much harder problem to obtain sharp estimates of equilibration times). As I suspected, but failed to confirm even after getting a few books out of the library***, vN had already established this result (and, perhaps, most of the recent results!) in 1929 :-)
To overstate: vN had forgotten (by dying) more about the foundations of stat mech than the rest of the community remembered! Yet another example of (highly) nonlinear returns to brainpower in mathematical and physical sciences.
S. Popescu, A. J. Short, A. Winter: Entanglement and the foundation of statistical mechanics. Nature Physics 21(11): 754–758 (2006); N. Linden, S. Popescu, A. J. Short, A. Winter: Quantum mechanical evolution towards thermal equilibrium. Physical Review E 79: 061103 (2009) http://arxiv.org/abs/0812.2385.
Sadly, in our era of specialization these deep foundational issues tend to be of little interest to most physicists.
Wigner: But it is sad to lose touch with whole branches of physics, to see scientists cut off from each other. Dispersion theorists do not know axiomatic field theory; cosmologists do not know nuclear physics. Quantum mechanics is hard to explain to a chemist ... and yet the best theoretical chemists really ought to know quantum mechanics.
Specialization of science also robbed us of much of our passion. We wanted to grasp science whole, but by then the whole was something far too vast and complex to master. Only rarely could we ask the deep questions that had first drawn us to science.
*** To be precise I found only discussions formulated in terms of coarse grained phase space -- individual (dQ, dP) cells -- as opposed to a more fundamental pure state description of the system. The connection between these pictures is provided by vN in the (now translated) paper linked to above. I believe I actually saw a reference to this paper, but had no idea how to find an English version of it :-)
Wednesday, March 02, 2011
With Pascin at the Dôme
I always wondered who Hemingway had in mind as the dark sister when he wrote the short story With Pascin at the Dôme, which appeared in the collection A Moveable Feast. According to the article Who Was With Pascin at the Dôme?, it was the model Bronia Perlmutter (on the left, below). The early 20th century precursor to Natalie Portman?
Disappointingly, literary muses seldom live up to their fictional depictions. I guess it's because very few struggling writers have good Game ;-) Even the women Hemingway hung around with don't seem exceptionally beautiful..
Disappointingly, literary muses seldom live up to their fictional depictions. I guess it's because very few struggling writers have good Game ;-) Even the women Hemingway hung around with don't seem exceptionally beautiful..
With Pascin at the Dôme: ... i went over and sat down at a table with pascin and two models who were sisters. pascin had waved to me while i had stood on the sidewalk on the rue delambre side wondering whether to stop and have a drink or not. pascin was a very good painter and he was drunk; steady, purposefully drunk and making good sense. the two models were young and pretty. one was very dark, small, beautifully built with a falsely fragile depravity. the other was childlike and dull but very pretty in a perishable childish way. she was not as well built as her sister, but neither was anyone else that spring.
'the good and the bad sisters,' pascin said. 'i have money. what will you drink?' 'une demi-blonde,'i said to the waiter. 'have a whisky. i have money.'
'i like beer.'
'if you really liked beer, you'd be at lipp's. i suppose you've been working.'
'yes.'
'it goes?'
'i hope so.'
'good. i'm glad. and everything still tastes good?'
'yes.'
'how old are you?'
'twenty-five.'
'do you want to bang her?' he looked towards the dark sister and smiled. 'she needs it.'
'you probably banged her enough today.'
she smiled at me with her lips open. 'he's wicked,' she said. 'but he's nice.'
'you can take her over to the studio.'
'don't make piggishness,' the blonde sister said.
'who spoke to you?' pascin asked her.
'nobody. but i said it.'
'let's be comfortable,' pascin said. 'the serious young writer and the friendly wise old painter and the two beautiful young girls with all of life before them.' we sat there and the girls sipped at their drinks and pascin drank another fine a l'eau and i drank the beer; but no one was comfortable except pascin. the dark girl was restless and she sat on display turning her profile and letting the light strike the concave planes of her face and showing me her breasts under the hold of the black sweater. her hair was cropped short and was sleek and dark as an oriental's. 'you've posed all day,' pascin said to her. 'do you have to model that sweater now at the cafe?'
'it pleases me,' she said.
'you look like a javanese toy,' he said.
'not the eyes,' she said. 'it's more complicated than that.'
'you look like a poor perverted little poupee.'
'perhaps,' she said. 'but alive. that's more than you.'
'we'll see about that.'
'good,' she said. 'i like proofs.'
'you didn't have any today?'
'oh that,' she said and turned to catch the last evening light on her face. 'you were just excited about your work. he's in love with canvases,' she said to me. 'there always some kind of dirtiness.'
'you want me to paint you and pay you and bang you to keep my head clear, and be in love with you too,' pascin said. 'you poor little doll.'
'you like me, don't you, monsieur?' she asked me.
'very much.'
'but you're too big,' she said sadly.
'everyone is the same size in bed.'
'it's not true,' her sister said. 'and i'm tired of this talk.'
'look,' pascin said. 'if you think i'm in love with canvases, i'll paint you tomorrow in water colours.'
'when do we eat?' her sister asked. 'and where?'
'will you eat with us?' the dark girl asked.
'no. i go to eat with my legitime.' that was what they said then. now they say 'my reguliere'.
'you have to go?'
'have to and want to.'
'go on, then,' pascin said. 'and don't fall in love with typewriting paper.'
'if i do, i'll write with a pencil.'
'water colours tomorrow,' he said. 'all right, my children, i will drink another and then we eat where you wish.'
'chez viking,' the dark girl said.
'me too,' her sister urged.
'all right,' pascin agreed. 'good night, jeune homme. sleep well.'
'you too.'
'they keep me awake,' he said. 'i never sleep.'
'sleep tonight.'
'after chez les vikings?' he grinned with his hat on the back of his head. he looked more like a broadway character of the nineties than the lovely painter that he was, and afterwards, when he had hanged himself, i liked to remember him as he was that night at the dome. ...
Tuesday, March 01, 2011
Swoosh!
How the athletic shoe was born in Eugene, Oregon. Bill Bowerman was Phil Knight's track coach at U Oregon. Together, they founded Nike.

Future champions at Hayward Field:
William Jay "Bill" Bowerman (February 19, 1911 – December 24, 1999) was an American track and field coach and co-founder of Nike, Inc. Over his career, he trained 31 Olympic athletes, 51 All-Americans, 12 American record-holders, 24 NCAA champions and 16 sub-4 minute milers. During his 24 years as coach at the University of Oregon, the Ducks track and field team had a winning season every season but one, attained 4 NCAA titles, and finished in the top 10 in the nation 16 times.
Oregonian: ... Phil Knight is Nike's well-known business and marketing brain, but Bowerman was its mad scientist. His eureka moment came one Sunday morning in 1971 in that house overlooking the McKenzie River.
Bill and Barbara were fixing breakfast -- Barbara wasn't at church, a common mis-telling -- as Bill raised a familiar topic: how to make shoes lighter and faster. Oregon's Hayward Field was transitioning from a cinder to an artificial-surface track, and Bill wanted a sole without spikes that could grip equally well on grass or bark dust.
"It was one of the few (footwear-related) things he ever talked to me about, so it was kind of fun for me," Barbara told Reames in an interview he conducted for Nike in 2006. "I picked out a couple pieces of jewelry and things that had stars on them, or things that we thought would indent or make a pattern on the soles. We were making the waffles that morning and talking about (the track).
"As one of the waffles came out, he said, 'You know, by turning it upside down -- where the waffle part would come in contact with the track -- I think that might work.'
"So he got up from the table and went tearing into his lab and got two cans of whatever it is you pour together to make the urethane, and poured them into the waffle iron."
Bill's breakthrough spawned Nike's Waffle Trainer, released in 1974, the first innovation in a company that became known for them. Before it, most athletic soles were flat with shallow patterns. The waffle had nubs that protruded like the tread on a motorcycle tire.
The distinctive shoe took off, Nike's "air" technology used in Air Jordan basketball shoes soon followed, and the Swoosh was on its way to becoming the top-selling athletic brand in the world.
Future champions at Hayward Field:
Monday, February 28, 2011
James Salter
I've been a fan of the writer James Salter (see also here) since discovering his masterpiece A Sport and a Pastime. Salter evokes Americans in France as no one since Hemingway in A Moveable Feast. The title comes from the Koran: Remember that the life of this world is but a sport and a pastime ... :-)
I can't think of higher praise than to say I've read every bit of Salter's work I could get my hands on.
Today I came across this excellent interview he did with the Paris Review. See also this appearance on Charlie Rose, in which he reads movingly from his memoir Burning the Days.
INTERVIEWER
When A Sport and a Pastime came out you were hailed as “celebrating the rites of erotic innovation” and yet also criticized for portraying such “vigorous ‘love’ scenes.” What did you think of all that?
SALTER
The eroticism is the heart and substance of the book. That seems obvious. I meant it to be, to use a word of Lorca’s, “lubricious” but pure, to describe things that were unspeakable in one sense, but at the same time, irresistible. Having traveled, I also was aware that voyages are, in a large sense, a search for, a journey toward love. A voyage without that is rather sterile. Perhaps this is a masculine view, but I think not entirely. The idea is of a life that combines sex and architecture—I suppose that’s what the book is, but that doesn’t explain it. It’s more or less a guide to what life might be, an ideal.
INTERVIEWER
People seem to have different opinions of what the book is about.
SALTER
I listen occasionally to people explaining the book to me. Every few years there’s an inquiry from a producer who would like to make a movie of it. I’ve turned the offers down because it seems to me ridiculous to try and film it. To my mind the book is obvious. I don’t see the ambiguity, but there again, you don’t know precisely what you are writing. Besides, how can you explain your own work? It’s vanity. To me it seems you can understand the book, if there’s been any doubt, by reading the final paragraph:
As for Anne-Marie, she lives in Troyes now, or did. She is married. I suppose there are children. They walk together on Sundays, the sunlight falling upon them. They visit friends, talk, go home in the evening, deep in the life we all agree is so greatly to be desired.
That paragraph, the final sentence, is written in irony, but perhaps not read that way. If you don’t see the irony, then the book is naturally going to have a different meaning for you.
INTERVIEWER
It has been said that Dean’s desire for Anne-Marie is also a desire for the “real” France. It’s a linked passion.
SALTER
France is beautiful, but his desire is definitely for the girl herself. Of course she is an embodiment. Even when you recognize what she is, she evokes things. But she would be desirable to him even if she didn’t.
INTERVIEWER
There’s a postmodern side to the book. The narrator indicates that he’s inventing Dean and Anne-Marie out of his own inadequacies.
SALTER
That’s just camouflage.
INTERVIEWER
What do you mean?
SALTER
This book would have been difficult to write in the first person—that is to say if it were Dean’s voice. It would be quite interesting written from Anne-Marie’s voice, but I wouldn’t know how to attempt that. On the other hand, if it were in the third person, the historic third, so to speak, it would be a little disturbing because of the explicitness, the sexual descriptions. The question was how to paint this, more or less. I don’t recall how it came to me, but the idea of having a third person describe it, somebody who is really not an important part of the book but merely serving as an intermediary between the book and the reader, was perhaps the thing that was going to make it possible; and consequently, I did that. I don’t know who this narrator is. You could say it’s me; well, possibly. But truly, there is no such person. He’s a device. He’s like the figure in black that moves the furniture in a play, so to speak, essential, but not part of the action.
...
INTERVIEWER
What do you think Light Years is truly about?
SALTER
The book is the worn stones of conjugal life. All that is beautiful, all that is plain, everything that nourishes or causes to wither. It goes on for years, decades, and in the end seems to have passed like things glimpsed from the train—a meadow here, a stand of trees, houses with lit windows in the dusk, darkened towns, stations flashing by—everything that is not written down disappears except for certain imperishable moments, people and scenes. The animals die, the house is sold, the children are grown, even the couple itself has vanished, and yet there is this poem. It was criticized as elitist, but I’m not sure this is so. The two of them are really rather unexceptional. She was beautiful, but that passed; he was devoted, but not strong enough really to hold onto life. The title was originally “Nedra and Viri”—in my books, the woman is always the stronger. If you can believe this book, and it is true, there is a dense world built on matrimony, a life enclosed, as it says, in ancient walls. It is about the sweetness of those unending days.
...
INTERVIEWER
I’ve read that the notion behind Light Years came from a remark by Jean Renoir.
SALTER
“The only things that are important in life are the things you remember.” Yes, I like that idea. I came across it after I was working on the book. But no matter, it authenticated something I felt. I wanted to compose a book of those things that one remembers in life. That was the notion. I suppose that the plot of the book is the passage of time and what it does to people and things. Perfectly obvious again, but combining those two ideas gave me the feeling of what the book should be. That still doesn’t displease. I find it satisfying.
...
INTERVIEWER
At one point Viri says, “There are really two kinds of life. There is the one people believe you’re living and there is the other. It is this other which causes the trouble, that other we long to see.”
SALTER
Isn’t this like that very small book that Poe said could never be written, “My Heart Laid Bare.” There is a socially acceptable, let us say, conventional life that we live and discuss and pretty much adhere to, and there is the other life, which is the life of thought, fantasy, and desire that is not openly discussed. I’m sure, the times being what they are, there are people who do talk about it and probably on television, but in general, in most lives, these two things are completely distinct. I am conscious of them and attempted to write a little about it.
...
INTERVIEWER
You’ve written that after you returned to domestic life you eventually stopped talking about your war days, but now you’re writing about them.
SALTER
There was no point in talking about war days. Who was there to talk to about them? Someone at a party telling you about being over Ploesti or what he did in Vietnam usually trivializes it. You have to have the right audience. Also, when you write about it you have the opportunity to arrange it exactly the way you would like, and one presumes that the reader is going to be enthralled.
INTERVIEWER
But why a memoir?
SALTER
To restore those years when one says, All this is mine—these cities, women, houses, days.
INTERVIEWER
What do you think is the ultimate impulse to write?
SALTER
To write? Because all this is going to vanish. The only thing left will be the prose and poems, the books, what is written down. Man was very fortunate to have invented the book. Without it the past would completely vanish, and we would be left with nothing, we would be naked on earth.
Sunday, February 27, 2011
BJ Penn forever
Last night BJ Penn, whose natural weight class is 155 (or even 145 if he were any good at cutting weight), took the #2 ranked welterweight (John Fitch, whose natural weight is probably around 190-200) to a draw. In his career Penn has held the championship belt at 155 and 170, and faced world champions at 155, 170 and even 205 (LHW - Lyoto Machida). He was the first non-Brazilian to win a world championship in BJJ, after only a few years of training. Penn lacks a lot of things you might want from a top level fighter -- he's not that strong, his endurance is suspect, he's usually undersized, etc., etc. But in terms of raw fighting ability he is one of the all time greats. The most exceptional quality Penn has is gameness -- he'll fight anyone, anytime.
Here's the Gracie technique analysis. Flow with the go ;-)
Here is a better shot of BJ and Fitch. Does it look like they should be in the same weight class?
Friday, February 25, 2011
Fear and loathing and hollowing out
Why have public sector unions become the welfare queens of recent political discourse?
See also this earlier post from 2005: Equilibration can hurt.
Here's Richard Freeman last year at Alibaba's (Chinese internet company) Hangzhou offices. When it comes to labor economics, Richard tells it like it is.
NYTimes: ... In Ohio, economic decline has redrawn the map, devastating towns and cities, and making some places unrecognizable. Mr. Carner, now 70, recalled making a wrong turn at night in Toledo a number of years ago, not realizing where he was because population decline had left entire blocks abandoned and dark.
“We’re just a little bit afraid, like an old man who is trying to make his way, but is lost,” he said. “We used to be the big boys on the block, but the rest of the world is catching up with us in so many ways.”
Richard Freeman, an economist at Harvard, said he saw the hostility toward unions as a sign of decay in society. Some working-class people see so few possibilities for their lives that it is eroding the aspirational nature that has long been typical of Americans.
“It shows a hopelessness,” he said. “It used to be, ‘You have something I don’t have; I’ll go to my employer to get it, too. Now I don’t see any chance of getting it. I don’t want to be the lowest one on the totem pole, so I don’t want you to have it either.’ ”
See also this earlier post from 2005: Equilibration can hurt.
Here's Richard Freeman last year at Alibaba's (Chinese internet company) Hangzhou offices. When it comes to labor economics, Richard tells it like it is.
Thursday, February 24, 2011
In transit
I'm back in Asia now.
I splurged and went for the business class upgrade. Well worth it as I was able to sleep about 4 hours and ended up sitting next to someone that may be a valuable contact in the future. Global elites, indeed.
Here's the Narita Red Carpet Club, which has showers, sushi, booze and wifi.
I splurged and went for the business class upgrade. Well worth it as I was able to sleep about 4 hours and ended up sitting next to someone that may be a valuable contact in the future. Global elites, indeed.
Here's the Narita Red Carpet Club, which has showers, sushi, booze and wifi.
Wednesday, February 23, 2011
Caltech basketball
Looks like they finally broke their losing streak :-) Covered by the NYTimes, no less!
I was on the swimming, waterpolo and football teams (the football team no longer exists). The swimming and waterpolo teams (competing in somewhat geekier sports) were more successful than the basketball team. The football team would have probably had a similar losing streak if we played regular SCIAC competition, although we did have a superstar running back (Div I quality) who was scouted for the USFL as a senior.
Coincidentally, I picked up this t-shirt at the bookstore last week when I was visiting. The shirts were on clearance, so I got mine for 50 percent off. Now I bet they're a hot item. Go Beavers!
I was on the swimming, waterpolo and football teams (the football team no longer exists). The swimming and waterpolo teams (competing in somewhat geekier sports) were more successful than the basketball team. The football team would have probably had a similar losing streak if we played regular SCIAC competition, although we did have a superstar running back (Div I quality) who was scouted for the USFL as a senior.
Coincidentally, I picked up this t-shirt at the bookstore last week when I was visiting. The shirts were on clearance, so I got mine for 50 percent off. Now I bet they're a hot item. Go Beavers!
Monday, February 21, 2011
Lunch with Razib
I had lunch with blogger and population geneticist Razib Khan today. Lunch turned into coffee which turned into hours of discussion. Razib told me he's been blogging for a decade now. See him discuss multiregional human evolution in light of recent discoveries of archaic DNA in certain human subgroups, with Michigan paleo anthropologist Milford Wolpoff:
One concrete outcome from the meeting is I've now created a twitter feed for my blog posts. See here: @hsu_steve.
One concrete outcome from the meeting is I've now created a twitter feed for my blog posts. See here: @hsu_steve.
Sunday, February 20, 2011
In search of brainpower
I'm back in Berkeley again after my visit to Caltech. Later this week I'll return to my sabbatical in Taiwan.
As I mentioned in this earlier post, I've lately been working on the unconventional idea that the theta parameter in QED might be directly measurable (specifically, in experiments involving superpositions of photonic states; slides). If I'm correct, there is an additional fundamental parameter of the standard model, and of QED, that has yet to be measured. On this trip I've discussed this idea with theorists at Oregon, Berkeley and Caltech, and also with experimentalists in quantum optics at Oregon, Stanford and Caltech.
During my week at Caltech I sought out my former professors Mark Wise (McCone Professor of Theoretical Physics), John Preskill (Feynman Professor of Theoretical Physics) and David Politzer (Tolman Professor of Theoretical Physics) to get their feedback on the idea. Mark and John both arrived on campus in 1983, my freshman year. They and David were the bright young professors on the fourth floor of Lauritsen, successors to the giants, Feynman and Gell-Mann. As you might expect, it's psychologically quite difficult to be the advocate of an idea that goes against conventional wisdom. An iconoclastic "maverick spirit" is probably as necessary for innovation as is raw intelligence. I was counting on their brainpower to help me find the problems with my work -- what is opaque to me might be obvious to them :-)
It's entirely possible that I'll discover, after many months of effort, that the work is incorrect. Dave Politzer told me, either this idea will be seen in retrospect to be obvious, and people will wonder why they didn't have the imagination to think of it, or there's something wrong that will be revealed under further examination. I guess time will tell.
Action photo: theoretician at work in a Berkeley cafe.

Another beautiful sunset.
As I mentioned in this earlier post, I've lately been working on the unconventional idea that the theta parameter in QED might be directly measurable (specifically, in experiments involving superpositions of photonic states; slides). If I'm correct, there is an additional fundamental parameter of the standard model, and of QED, that has yet to be measured. On this trip I've discussed this idea with theorists at Oregon, Berkeley and Caltech, and also with experimentalists in quantum optics at Oregon, Stanford and Caltech.
During my week at Caltech I sought out my former professors Mark Wise (McCone Professor of Theoretical Physics), John Preskill (Feynman Professor of Theoretical Physics) and David Politzer (Tolman Professor of Theoretical Physics) to get their feedback on the idea. Mark and John both arrived on campus in 1983, my freshman year. They and David were the bright young professors on the fourth floor of Lauritsen, successors to the giants, Feynman and Gell-Mann. As you might expect, it's psychologically quite difficult to be the advocate of an idea that goes against conventional wisdom. An iconoclastic "maverick spirit" is probably as necessary for innovation as is raw intelligence. I was counting on their brainpower to help me find the problems with my work -- what is opaque to me might be obvious to them :-)
It's entirely possible that I'll discover, after many months of effort, that the work is incorrect. Dave Politzer told me, either this idea will be seen in retrospect to be obvious, and people will wonder why they didn't have the imagination to think of it, or there's something wrong that will be revealed under further examination. I guess time will tell.
Action photo: theoretician at work in a Berkeley cafe.

Another beautiful sunset.
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