Brent, I don't make an exception for brains. In MWI, brains are part of the wavefunction and evolve deterministically like everything else.
The point is just that within each branch, an observer subjectively feels uncertainty and experiences making choices, even though globally all outcomes are included. It's first person indeterminacy. It is not an exception, it is simply how decoherence divides the universal state into effectively separate histories. Quentin All those moments will be lost in time, like tears in rain. (Roy Batty/Rutger Hauer) Le dim. 6 juil. 2025, 20:59, Brent Meeker <meekerbr...@gmail.com> a écrit : > > > On 7/5/2025 11:42 PM, Quentin Anciaux wrote: > > > > All those moments will be lost in time, like tears in rain. (Roy > Batty/Rutger Hauer) > > Le dim. 6 juil. 2025, 06:43, Brent Meeker <meekerbr...@gmail.com> a > écrit : > >> >> >> On 7/5/2025 7:16 PM, Quentin Anciaux wrote: >> >> With MWI, measurement is just unitary evolution entangling the observer >> with the system, so no collapse postulate is added. >> >> Copenhagen plus decoherence still requires you to say the wavefunction >> really collapses to one outcome. >> >> You say that like agreement with experience is a flaw. >> > > One and only one history is a flaw imo and I already explained why I have > that opinion. > > >> MWI just treats the whole process as continuous evolution, with all >> branches persisting. >> >> I know. But it still assumes the experimenter is free to choose what >> measurement he makes... >> > > Of course as he makes them all. > > unlike superdeterminism. So if you really think determinism is >> important... >> > > Then I should follow a non sensical theory? > In MWI, determinism applies to the whole wavefunction, but freedom of > choice still appears inside each branch, without any global conspiracy > linking settings to hidden variables. That’s why it isn’t superdeterminism. > > Why would you suppose that determinism applies to everything, but then > make an exception for brains. > > Brent > > -- > 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 everything-list+unsubscr...@googlegroups.com. > To view this discussion visit > https://groups.google.com/d/msgid/everything-list/3633b3f9-6208-4cf1-99fe-efe4322294f1%40gmail.com > <https://groups.google.com/d/msgid/everything-list/3633b3f9-6208-4cf1-99fe-efe4322294f1%40gmail.com?utm_medium=email&utm_source=footer> > . > -- 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 everything-list+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAMW2kArj2Vw48oEgvUn-SFEmryb67Qe8QWuFWjD9OtO0kCm-tQ%40mail.gmail.com.
