User blog comment:ProfessorMcG/Time Travel. Is it possible?/@comment-461469-20100815052200

Of course, we can't challenge God: for he has a plan, and that plan is....well I don't know, and I don"t think anyone else does either.

Anyway, If their were a billion planets in the universe, even if say .00001 of planets could develop life, that would leave over 10,000 different planets with life. Sure, it may be difficult for life to develop and find the right environment, but their could still be planets with life.

As for time travel, my favorite theory is that history is one long road, lets say. But, if somehow someone is able to project himself into the past and change something (a handshake, kill Hitler, etc.) then history diverges from the road, and creates a new road, and the time traveler is now part of the one he created, while the one he was formerly in still continues on from the point he left, albeit, without the time traveler. This basically means that the alteration of history by one person from one path to another will only be remembered and realized by one person, the time traveler, while a fork in the road is created: one of the "main" history, and the one the traveler created by changing the past. So the person will know the history of the road he was born and lived in up till he time traveled, but if he changes it, then he is now part of the road he created.

This can also partially solve the grandfather paradox, for, if the traveler went back into time and killed his grandfather, he would still be part of the road he created, as his grandfather would still be alive in the other road, so the traveler is still born to go back in time to kill his grandfather.

I would also say that basically means the traveler is "stuck" in the road he created, unless he kept using the time machine to try to set it back right, then traveled back to the present he was in just moments after he left from time traveling. This would be difficult to do, as one divergence can radically change the entire course of history, so it would take a long time, lots of work, and the knowledge of virtually everything in order to realign history as he first knew it, but would, in turn, leave thousands, if not millions, of forks in the road from the original divergence, each of which is separate and unable to interact with another, even if the results of one divergence would be the virtually the same as another, as something would prevent it from being exact.

Did I just blow everyone's mind with a reasonable explanation to Time Travel that keeps making sense, even after I say to myself a few times, and seems reasonable? Or is their something that still needs to be explained, or completely unrealistic?