A man goes back in time and kills his grandfather,but since he killed his grandfather he doesnt exist.So how can he kill his grandfather?Is this a casual loop or wat is it?
2006-08-12 05:30:12 · 7 answers · asked by Chase 2 in Science & Mathematics ➔ Other - Science
I tend to agree with the theory that that cannot happen. Any matter cannot go back before it existed. Example: You could only go back to any time within your life. You couldn't go back to see your grandfather as a kid.
I also think you couldn't go back and change anything. You could only be an observer. Any change, not just your dramatic example, would create a paradox. What if you threw a ball into a net. You, then, went back in time to before you threw that ball and blocked it. The ball did, in fact, go in, but you stopped it. That would be a paradox.
So I tend to think that we could only see things that happened, not effect the outcome, because that had already been decided.
2006-08-12 05:42:23 · answer #1 · answered by Anonymous · 1⤊ 0⤋
The 35 year old grandfather witnesses the birth of his grandson and then they both age, say, 25 years in a rest frame, the same reference frame. So now the grandfather is 60 and the grandson is 25. At that point, the grandfather begins to move at a speed very very close to the speed of light for a number of years, say 40 years. In his frame, he's 100 years old, but in the grandson's frame, they are now both the same age, 65. So the grandson kills his grandfather for being the speed of light bastard that he is, and in doing so becomes a relativistic grand-bastard himself. Since the boy was already born at rest, in his frame the murder occurred when the 2 men were the same age. To the grandfather, his grandson killed him for no apparent reason on his 100th birthday. Causation isn't violated in either frame, grandpa's dead, and the grand-bastard is now at rest in prison for committing murder.
Who said Harry Potter? This is real, validated science generated by Albert Einstein...you're comparing Albert Einstein's Theory of Relativity with the author who wrote Harry Potter? ****.a please...
2006-08-12 05:44:24 · answer #2 · answered by copenhagen smile 4 · 1⤊ 0⤋
If you were able to go back in time, you would cause a split in the time-universe continum. In one time-space the grand father would have been murdered by someone from outside his space time and in another universe, an ungreatful grandchild would have exited his universe.
Time splits are theoretical. At this point in history, humans have not published much on superluminal physics, the physics required to time travel.
It does not creat a casual loop. These are not known to exist.
2006-08-12 07:42:54 · answer #3 · answered by Bernard B 3 · 0⤊ 0⤋
Perhaps on a different reality.
The time paradox was explained best in Harry Potter 3
2006-08-12 05:33:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
This is similar to the computer sending a terminator into the past when it already knows the future of Mr. Connor
2006-08-12 20:00:55 · answer #5 · answered by slick_geek 2 · 0⤊ 0⤋
Im impressed with the answers given by Copenhagen and Michaelbob. *sweat*
2006-08-12 09:08:23 · answer #6 · answered by SxyDeViL 2 · 0⤊ 0⤋
no time travel so no answer
2006-08-12 05:43:50 · answer #7 · answered by Anonymous · 0⤊ 0⤋