I remain unconvinced that that probabilities are undefined. Tegmark gave an interesting version of how to get Born's rule from MWI, which seemed to have legs. Deutsch gave one based on decision theory that is admittedly unsatisfying.
My own derivation simply assumed that observers had measure. The probability of an outcome is proportional to the measure of the observers both before and after the event, and the normalised to make the result into a probability. That gives the Born rule right there, independently of Gleason's theorem IIUC. Cheers On Mon, Mar 02, 2015 at 01:10:22PM +1100, Stathis Papaioannou wrote: > On Monday, March 2, 2015, meekerdb <meeke...@verizon.net> wrote: > > > On 3/1/2015 5:10 PM, Stathis Papaioannou wrote: > > > > On 2 March 2015 at 11:20, meekerdb <meeke...@verizon.net> > > <javascript:_e(%7B%7D,'cvml','meeke...@verizon.net');> wrote: > > > > > > MWI doesn't explain the probabilities. > > > > So what would the probabilities be if MWI were true? > > > > > > > > > > Undefined. > > > > What would it be like to live in a world where probabilities were > undefined? Can you reason that we don't live in a world with undefined > probabilities and therefore we can't live in a multiverse? > > > -- > Stathis Papaioannou > > -- > 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 post to this group, send email to everything-list@googlegroups.com. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. -- ---------------------------------------------------------------------------- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics hpco...@hpcoders.com.au University of New South Wales http://www.hpcoders.com.au Latest project: The Amoeba's Secret (http://www.hpcoders.com.au/AmoebasSecret.html) ---------------------------------------------------------------------------- -- 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 post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
