On Sun, Dec 23, 2018 at 11:29 AM Jason Resch <[email protected]> wrote:
> On Fri, Dec 21, 2018 at 10:01 PM Brent Meeker <[email protected]> > wrote: > >> >> That's words. How shall they determine whether event X in distant galaxy >> Y is simultaneous with their clock reading Z? Is their "direction through >> spacetime" constant over billions of years? >> > > If the event occurred N-light years away, and light from that event > arrives in N-years, then it can be considered simultaneous with the > observer. > That is not the way in which the plane of simultaneity is normally defined. Your idea gives events that are not simultaneous in any frame! Bruce -- 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.

