Quote:
Originally Posted by Rochard
If time travel ever became possible, wouldn't we have known about it by now? Wouldn't they come back in time and tell us and prove it to us?
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Stephen Hawking threw a welcome party for future time-travellers... no one showed up.
http://www.huffingtonpost.co.uk/2012...n_1643488.html
Of course that might have been because he waited until the party was over to send out the invites.
"I gave a party for time-travellers, but I didn't send out the invitations until after the party. I sat there a long time, but no one came."