I am quite confused. Along time ago I was considering time travel. I conducted several thought experiements and came up with several paradoxes.
First the pure logic without the thought experiement.
A is cause. B is the effect of the cause A.
A causes B.
B is the action of going back in time and preventing A from happening.
A never happened, therefore B never happened. But if B never happened, then A did happen, meaning B did happen. But if B did happen then A didn't happen. But A is the cause of B so then B didn't happen. But if B didn't happen then A did happen which means B did happen.
How do I resolve this? I don't see how we are going to perform time travel if we can't get around this.
Now for the thought experiement.
Lets say we have a table with raised edges. There is one ball on the table. There are two holes, one on the right side of the table and one on the top side of the table. The right hole leads to the top hole10 minutes ago.
Now, the ball rolls for 10 minutes (this is a really long table and a fast moving ball) from the left of the table for the duration of 10 minutes into the right hole. Half way there, the same ball comes out of the top hole from the future and collides with the other ball. Now the other ball is moved away from the hole so that it cannot enter it.
What happens now?
Does the future ball suddenly dissapear? Does that mean the future ball was never there? And if the future ball was never there does that mean that the present ball automatically jumps back to where it was in order to move into the hole. But if it is going into the slot then doesn't the future ball come and stop it?
At what point in time does the change in history take affect? Why should the paradox occur only once the collision happens? Does it occur before the present reaches the time of when the collision occurs?
Is there a way to mathematically figure out what ultimatley happens to the ball?
I would really like some answers.
Edited by Guido Arbia, : No reason given.
Edited by Guido Arbia, : No reason given.
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