On Tuesday, December 4, 2018 at 10:28:39 PM UTC-6, Philip Thrift wrote: > > > > On Tuesday, December 4, 2018 at 3:45:32 PM UTC-6, Bruce wrote: >> >> On Wed, Dec 5, 2018 at 6:58 AM Philip Thrift <[email protected]> wrote: >> >>> >>> On Tuesday, December 4, 2018 at 1:53:15 PM UTC-6, Brent wrote: >>>> >>>> >>>> On 12/4/2018 12:25 AM, Philip Thrift wrote: >>>> >>>> >>>> 1. Histories originate at an emitter e and end at screen locations s on >>>> a screen S. >>>> 2. At each s there is a history bundle histories(s). A weight w(s) is >>>> computed from the bundle by summing the unit complex numbers of the >>>> histories and taking the modulus. >>>> 3. The weight w(s) is sent back in time over a single history h*(s) >>>> selected at random (uniformly) from histories(s). >>>> 4. At e, the weights w(s) on backchannel of h*(s) are received (in the >>>> "present" time) >>>> 5. A single history h*(s*) is then selected from the distribution in 4. >>>> >>>> >>>> How is it selected? Above you said "at random". But that implies >>>> there is already a probability measure defined on the histories. How is >>>> this probability measure determined? Or put another way how do you >>>> determine what histories to consider to form the bundles in step 2? >>>> >>>> Brent >>>> >>> >>> Selection happens via quantum Darwinism. >>> >> >> >> Do you have even the faintest understanding of Quantum Darwinism? >> >> Bruce >> > > > > > How is *sum over histories with Darwinian selection* (as defined) not > quantum Darwinism? > > Operationally, what is different? > > - pt >
*Sum over histories with Darwinian selection* is consistent with *Quantum Darwinism as a Darwinian process* [ https://arxiv.org/abs/1001.0745 ]. - pt -- 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 https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
