Quote:
Originally Posted by matt
Hi Leon.
It's also likely we will have heavily populated the galaxy/universe by then.
Given the environments encountered by those 'travellers', it might be more likely they'll show some degree of difference.
This is all assuming, of course, we survive the next few hundred years!!!! 
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In the time scales we are talking about I wonder how many hundreds/thousands of years It would be before all the earths resources are used up or we blow ourselves up and we have to jump ship to other parts of the universe to survive.
on the question of will we look different I would say no as I come from the creationist veiwpoint which is a whole other debate.