All, The proof is simply the fact that the time traveling twins meet up again with different clock times, but always in the exact same present moment. This proves beyond any doubt there are two kinds of time, clock time which varies by relativistic observer, and the time of the present moment (what I call P-time) which is absolute and common to all observers across the universe.
When this is realized there are a number of profound implications. First that time travel outside the common present moment is impossible since all of reality (the entire universe) exists within/is the common present moment. The only time travel that is possible is having different clock times within the same shared present moment. Second, that this is compatible with only one cosmological geometry, named that the universe is a 4-dimensional hypersphere with P-time (not clock time) as its continually extending radial dimension. That is cosmological space is positively curved and finite. In fact we all see all 4-dimensions of this geometry all the time and visually verify this, as the radial P-time dimension is seen as distance in every direction from every point in the 3-dimensional space of the hypersphere's surface. What amazes me is that no one recognized this simple obvious fact prior to my stating it in my 1997 paper 'Spacetime and Consciousness'. It's a great example of how the trivially obvious can remain unrecognized, no matter how important, if it isn't part of the accepted world view of, in this case, either common sense or science..... Edgar -- 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 firstname.lastname@example.org. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.