Taylor J. Smith wrote: > Hi All, 5-23-09 > > Time, like truth, is subjective; it is a feeling > about something. In terms of natural selection, > it is to our advantage to be able to predict > what is going to happen; and time is a series of > events, heart beats or sunrises, that lets us > keep track of things. >
You're right, regarding the general conception of time. But we're trying to define 'physical time', that is, the subyacent reality (or not) of time in the domain of physical processes. > Jack Smith > > > > Jones Beene wrote: > >> ----- Original Message ---- >> >> >>> From: Mauro Lacy >>> >>> Only velocity exists, physically. From then on, time is derived as t=v/s. >>> That is, in physics time is no more than a mathematical construct. I >>> meant: t=s/v >>> >> Which comes first - the chicken or the egg? >> >> Why not say that only time and space exist, physically, and that velocity is >> derived therefrom ? >> >> After all, there are ways to measure time independently of velocity, but no >> way to measure velocity independently of time. >> > > >
