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Posted by Feynmann on July 10, 2003 at 13:23:12:
In Reply to: That only holds true if you accept that E=mc2 . . . posted by Get with the programme BB on July 10, 2003 at 12:15:33:
I think it's been quite well shown that the relativity equations don't exclude the possibility of time travel. It's not mathematically forbidden but obviously poses some difficulties. Now what about wormholes?