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The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
Niels Bohr

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The Grandfather Paradox proves...

 that time travel entails the possibility of causality violations3 votes
10.71%
 that a time traveller's actions are restricted, in a particularly unusual way2 votes
7.14%
 that there must be some sort of 'Chronology Protection Agency' that prevents time travellers from creating a causal contradiction0 votes
0.00%
 that time travel is logically, and therefore physically, impossible1 votes
3.57%
 that if we did time travel and kill our grandfather, a new universe would be created with a different history7 votes
25.00%
 that time travel is weird... but not much else0 votes
0.00%
 nothing interesting at all... the so-called 'paradox' only proves that we can't do something that we can't do, which is obvious7 votes
25.00%
 none of the above, and I will comment to explain myself!8 votes
28.57%
total votes: 28
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From: dera :
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@ Space
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From: mad_scientist :
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@ Lifestyle
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From: cybersky :
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From aardvark to zinnia, all of Earth's known species to be cataloged on Web site
@ Computers & IT
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From: cybersky :
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Gene mutation linked to cognition is found only in humans
@ Biology
May 09 2007 - 23:29 GMT
From: cybersky :
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Mathematician shows possibility of invisibility
@ Physics
May 04 2007 - 22:41 GMT
From: cybersky :
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