I have been thinking about this and particularly why I bother to think about it
.
I find myself pondering upon a situation that one could reasonably say will never happen
... the prospect of humans pioleting space ships that travel at or near C is not going to happen
... so we are dealing with simply a mind experiement which is incapable of resolution.
I know there will be those who site the atomic clocks as proof of time dialiation and in that case well I guess there is proof that relates to atomic clocks
... but not to twins one of whom flys away at or near C
.... so until we can observe one twin leaving the planet at or near C there is no physical evidence of the paradox we wonder about
.
alex