> On 4 Jul 2018, at 02:06, agrayson2...@gmail.com wrote: > > > > On Monday, June 25, 2018 at 6:23:10 AM UTC-6, Bruno Marchal wrote: > >> On 21 Jun 2018, at 23:56, agrays...@gmail.com <javascript:> wrote: >> >> Why don't we observe the pure states, decayed + undecayed, or decayed - >> undecayed? TIA, AG > > > We “observe them indirectly” by the interferences, which eventually requires > some bases corresponding to the one our brain has been implemented in, by a > long evolutionary process. Mainly the Gaussian means of position and momentum. > > First part interesting. Will give it more thought. Are you claiming that at > some time much earlier in our evolution, we were able to observe the now > apparently contradictory pure states I wrote above?
I don’t know. That seems a bit far stretched. Zurek’s use of decoherence suggests that any physical machine might need the position base to have the sufficiently orthogonal state to emulate a classical machine, but I am not entirely convinced by this analysis. I have provided argument that the “position” base might be how any base looks like from the view of classical machine in that base, but this might be false too, according to physicists friends, but it is hard to be sure at this stage to me. As I approach this from another direction (cognitive science, metaphysics) such problem are premature. > When was that; at the time of Homo erectus, or earlier when Lucy around, even > earlier, or IMO never? It would be more like after 10^(-20) seconds after the Big-Bang, if that was true. > As for position and momentum, if one tries to locate the edge of an object > using the shadow it produces, the edge is ill-defined depending on the > frequency of light being used. So I don't see this phenomenon is in any way > related, or an answer to my question. AG With computationalism, you need the ability to make distinction, and this requires sufficiently well defined computational state. The fuzziness concerns only what you don’t know. If you want, a particle seem to travel to all slits at once only because your mental state is independent or isolated from which slit the particles is going through, so that you are really multiplied accordingly to each such events. The MWI can been seen as a special sort of hidden variable theory, where the hidden variable is the branche of the wave function where your memories makes sense. You cannot see a cat being death and alive simultaneously, because to see a cat, you need to see it in the base already chosen by your brain, through history. But you can see the cat being alive and dead, in the sense that you can detect that state in principles, by isolating the cat enough from you. It is just technically impossible, with a macro-cat, to isolate it sufficiently well to build a device making it associate with some usual experience. We have a very long quasi-classical history which has chosen the base in which we can do the necessary distinction to have a computational mind. Bruno > > Bruno > > > > >> >> -- >> 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-li...@googlegroups.com <javascript:>. >> To post to this group, send email to everyth...@googlegroups.com >> <javascript:>. >> Visit this group at https://groups.google.com/group/everything-list >> <https://groups.google.com/group/everything-list>. >> For more options, visit https://groups.google.com/d/optout >> <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 everything-list+unsubscr...@googlegroups.com > <mailto:everything-list+unsubscr...@googlegroups.com>. > To post to this group, send email to everything-list@googlegroups.com > <mailto:everything-list@googlegroups.com>. > Visit this group at https://groups.google.com/group/everything-list > <https://groups.google.com/group/everything-list>. > For more options, visit https://groups.google.com/d/optout > <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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
