On 10 January 2014 13:19, Jesse Mazer <laserma...@gmail.com> wrote: Locality is preserved so long as no physical objects travel faster than > light. > >> >> I don't think physicists use such a narrow definition--if the equations > of QM were modified so that the EPR experiment could be used to transmit > *information* FTL, then even if no measurable particle or wave was observed > to move FTL this would still probably be seen as a violation of locality. > And the pilot wave in Bohmian mechanics is arguably just a sort of rule for > coordinating the behavior of distant particles rather than a "physical > object", but its ability to coordinate them instantaneously is typically > seen as a violation of locality. Unfortunately I have not been able to find > any very precise definition of locality that would give a totally clear > answer about cases like this, it tends to be stated in terms of imprecise > terms like "effects" and "influences". > > Yes, sorry, I was tacitly assuming that information can only be transmitted by physical objects (including by light). I don't think there is any good evidence for any influences *not* being transmitted by some sort of fundamental particle? (Even gravity - which also travels at c, I believe).
Time-symmetry arguments don't involve ANY influences travelling FTL. -- 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/groups/opt_out.
