On Tue, Feb 18, 2025 at 9:26 AM Quentin Anciaux <[email protected]> wrote:
> Le lun. 17 févr. 2025, 23:13, Bruce Kellett <[email protected]> a > écrit : > >> On Tue, Feb 18, 2025 at 9:01 AM Quentin Anciaux <[email protected]> >> wrote: >> >>> >>> Sure, but saying “some things happen and others don’t” is just labeling >>> an outcome, not explaining why probability follows the Born rule. If you >>> take that as fundamental, fine, but that’s just postulating rather than >>> deriving it. >>> >>> MWI doesn’t deny probability; it just reframes the question. The >>> challenge isn’t that “everything happens,” it’s understanding why observers >>> experience frequencies matching the Born rule. That’s what self-locating >>> uncertainty and measure attempts to address. >>> >> >> Self-locating uncertainty is just the question "Why am I on this branch >> and not the other". I don't see that that question is any different from >> the characterization of probability as "some things happen and others >> don't". Self-locating uncertainty is just "Some branches matter to me and >> others don't". No different. >> >> Bruce >> > > Self-locating uncertainty isn't about some branches mattering more, it’s > about explaining why an observer, pre-measurement, should expect to > experience one outcome over another in the correct proportions > No different. The difference is that self-locating uncertainty applies before the > measurement, not just as a retrospective description of what happened. In > standard probability, uncertainty reflects an observer's ignorance of an > outcome before it is known. In MWI, all outcomes exist, but the observer > still doesn’t know which branch they will find themselves in, hence, > self-locating uncertainty. > Rubbish. If you say that the probability of horse X winning the race is p, then the race hasn't yet been run. So you are just talking nonsense. Bruce -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAFxXSLRZaiHTzeOD%3D7TBEHuqgcdm%2B2sw1qT4%3DxiTnV6mnL-MrQ%40mail.gmail.com.
