Time travel would mess things up
because people will try to change the past

would we? or would they be considered crazy and scoffed?

i like how Obdurate said "Isn't it scary to think that there's gazillioninfinite versions of us?" well...there could be

its called metaphysics, now you can't actually go and hang out with your other self but every thought you have could be an alternate reality, just because its not played out here who's to stay it isn't in an alternate dimension? You control you're own reality and you can make whatever you want happen simply by using your mind. If you tell yourself and believe yourself when you say that you're a beautiful person, eventually you'll become that person...mind over matter

my theory i posed there, is what becomes of our thoughts that we don't act on, is very interesting...its entirely possible that they just vanish and are gone, but who's to stay what happens? they're just energy, you're just energy, everything in the world is just made up of little molecules of energy, we're all fueled by the same energy and comprised of the same energy throughout the universe, so who knows if that energy can transcend dimensions? again, you create your own reality, so you can believe what you like

the problems we face in the world are because we all have different realities from each other

Metaphysics is a very interesting field of study, one that I defiantly don't have a good enough understanding of yet, but if you're interested in it as well, check out this movie...(it used to be streaming on Google Video, but i can't find it now so...do you're research kiddies!)

What the Bleep Do We Know!?™ & What the Bleep!? - Down the Rabbit Hole

I think we have now passed on to interdimensional travel. Would that be the same as time Travel?

I have seen "What the bleep do we know". It is a very good doco and I would like to see it again. It has a lot of info and would take mor then one watch to take it all in.

It would be interesting to see what one of my other realities is doing an maybe learn somethingfrom it and maybe make my world better or worse?

It's like the movie-The One. Starring Jet Li fighting himself due to multiverses. Good movie

It would be awesome, I would find get the lottery numbers from one day and go back one day, and play them, then I would be rich(but then everyone would do it because it is like getting free money.

Then money would have no value.

It would if only a few people could go back in time, then no one will know. So money will have the same value.

If only a few people could time travel then they'd be time lords.

Yeah, well if I was one of the select few, I wouldn't tell anyone about it, because they they would tell someone, and so forth, then everyone would know about it, thus killing me, or takeing the "POWER" or going back in time from, me, or worse, killing me..:P

What if they already exist? Then what?