MWI renormalization is just a snooker. On Mon, Nov 24, 2014 at 6:51 AM, <[email protected]> wrote:
> > > On Sunday, November 23, 2014 9:52:23 AM UTC, Bruce wrote: >> >> LizR wrote: >> > On 22 November 2014 09:31, Richard Ruquist <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > Collapse is necessary if you wish to conserve energy. >> > >> > I've been trying to follow this, but I still don't get why this is so, >> > or thought to be so. Is there a simple explanation that even I can >> grasp? >> >> If you have a particle of a certain evergy and you measure its spin >> projection, then in each world you get a certain result, but the >> particle still carries all the energy of the original particle. So if >> there are two possible spin states, then you have created two worlds, >> each of which has all the energy of the original. That is the sense in >> which energy is not conserved. >> >> The answer according to MWI advocates, at least as I have understood it, >> is that just as probabilities have to be renormalized in each of the >> daughter worlds, so does energy have to be renormalized. The probability >> of spin up was 0.5 pre-measurement, but once you observe the result >> 'up', the probability is renormalized to unity. Similarly, the energy >> could have been expected to be 50% of the original, but renormalization >> restores this to 100% in each world. >> > > > >> >> If you believe in MWI, believing in this renormalization is not such a >> stretch..... >> > > exactly > > -- > 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 post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > -- 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 post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
