tag:blogger.com,1999:blog-5880610.post6508326179177861100..comments2016-12-05T22:39:48.358-05:00Comments on Information Processing: Weinberg on quantum foundationsSteve Hsuhttp://www.blogger.com/profile/02428333897272913660noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5880610.post-68581195039887902882014-01-04T04:22:13.773-05:002014-01-04T04:22:13.773-05:00As you say in your paper, subjective probabilities...As you say in your paper, subjective probabilities have more legitimacy than objective ones. I'd go full Bayesian and say <i>only</i> subjective probabilities exist. OTOH I'd say your typical observer is a very elderly electron with a poor memory, albeit a better grasp of quantum mechanics than any human.MUltannoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-58826095267420966102013-02-20T22:53:24.238-05:002013-02-20T22:53:24.238-05:00Steve, we really really have to spend an hour or s...Steve, we really really have to spend an hour or so discussing where quantum probabilities come from. It's not like the Physical Review supported my thoughts on this, but everyone I told my story to did, so far. My thoughts are still available for anyone to see on http://arxiv.org/abs/quant-ph/9605002, and further thoughts are here http://arxiv.org/abs/0911.1142. I also have completely Christoph Adaminoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-67381082917509313042013-02-18T20:46:17.322-05:002013-02-18T20:46:17.322-05:00I don't understand why his objection against M...I don't understand why his objection against MWI isn't much more widely brought up. I'm but a layman, so I might be fundamentally misinformed, but the branching of the universe as suggested by the MWI doesn't make any sense at all to me except when all eigenvalues are equal: suppose we measure ψ = sqrt(0.01)|A⟩ + sqrt(0.99)|B⟩ twice, then we should end up with AA, AB, BA, BB. How Hannesnoreply@blogger.com