If it can be done, would you change your past, your future, your present?... In other words, if I go back in time and say kill a butterfly would that alter my present existence or in this case the future I would return to? Really think about this one. Is time linear? Is there only one Universe and one time line?

I expect better participation tomorrow. We got some brainiac's on here let's use 'em.

If I went back to see myself two years ago, and tell myself that Bill Phillips is a fraud, I would remember such event. Since I do not, then it never happened and never will.

In Science Fiction, you always see the character make every effort not to meet themselves, because it could disrupt history.
I don't think this is possible, because the character does NOT remember EVER bumping into himself, therefore even if he tried to meet himself, something would not allow the event to happen.

As far as God, I think he created a bubble of spacetime which we call our "Universe"
and he lives outside of it. That's why it's useless to ask "Where did God come from? How can he exist forever?" well, you're trying to impose temporal laws to him that do not affect him. You're trying to understand God from "our" point of view, not "His" that's the mistake.

(Sorry, I had to bring God into this, no religious zealotry here, just my opinion.
BTW, I guess you can tell I've been getting my EFA's and my Ginkgo Biloba...)

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Particle Weapon...UP YOUR ASS!!

I think anything is possible and I think one day technology will advance to the point where we figure out how to cure all disease, upload our minds into computers, time travel and live virtually forever. But Einsteins theory of relativity says time travel is impossible. To do so you have to travel faster than the speed of light and E=MC2(thats supposed to be squared) prevents it. The faster you go the greater your mass and the more energy it takes to move. So you eventually get to the speed where your mass is infinite and it takes infinite energy to move you so you never reach the speed of light. But one day somebody will probably figure out a way around it.

If you havent already done so, you should probably read "A Brief History of Time" by Stephen Hawking. He's a physicist that hold a position at Cambridge once held by Newton. He has Lou Gehrigs disease and can no longer speak or move. I think he does most of his work in his head. How he keeps track of the math calculations is beyond me. The book is a good read about time travel, black holes etc. I read it 4 or 5 times and still get lost after the first 30 or so pages but some of it sinks in anyway. Let me know what you think if you read it.

You shoot a laser beam toward the black hole, being careful the laser doesn't fall into the event horizon. Just close to the event horizon.

You circle around to the other side of the black hole, staying equidistant to the center of the black hole.

When you reached the other side of the black hole, you would have beat the laser beam there, since the laser beam going down FAR close to the event horizon, had a farther path to follow. You would have traveled faster than light, and you would have time traveled a little bit in the past.

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Particle Weapon...UP YOUR ASS!!

step 1. Get some fhat d00p apes.
step 2. Make em apes a big bannna shapes boat.
step 3. Throw some smake down doggie shit at da apes.
step 4. make sure da shit is future cause u ani't fuking with da past banna time boo ya yang
step 5. funky freestylzing apes travel in time and shit, u got time travlel

Fucking apes always got the upper hand at that science and shit.

u fuckhead.... lol

if i ask for any smoke, they beat me up and stuff me in a can

I pity the foo'!!!!!

U MURDERER!

In order to make time travel possible one would have to assume that the only place to go would be the past. If you start talking about the future before it happens you will have to argue with the religious nuts. ie. You could find out exactly when/if Jesus was going to return.

In order to go into the past one would have to assume that experiences repeat themselves continuously in space. If one could move faster than the speed of light, and bend time to make point a and point b the same, you would have to think it is possible.

But for travel into the past would it neccesarily alter our reality? Think of the Universe as one of many parallel universes. Everytime we make a decission, we create a new reality (universe) and so the branching goes. So, in the past you say kill a butterfly that is a new path (universe) which does not alter the reality of those living in that time. Now, the question is, can we jump from universe to universe? and travel back in time in that universe?

I have read all books mentioned and then some.