Are Time Travelers in our Midst? It's Possible!

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I was watching some show on the Science Channel awhile back and I vividly remember one the the guys they interviewed saying how it would be possible in the future to come back and communicate telepathically with yourself.
Which set me to automatically wondering about is that the little voice I heard in my head when I first met my ex-husband that said (verbatim)
"Good-looking guy, must be an as*hole"
Oh if only I had listened to my own advice.
(I also immediately thought of Dr. Who which made me go to Lau, Deacon Blues and Quartermass's names flashing thru also.)
That's all true BTW, but on a more serious note......
What if that really ishappening? Not to me personally, but would't that be cool? They also said next time someone says to you "Ive come from the "Future." You might have to take them a little more seriously!
Went back to the science channel to look for it and found this instead by my favorite physicist, have loved him since I read "Hyperspace" when it first came out years ago.
My NT daughter says the fact that I even have a "Favorite Physicist" proclaims my "Aspieness" to the world. I disagreed.

http://science.discovery.com/questions/ ... -kaku.html
Michio Kaku discuss the time travel here.

We are all time travelers, hurtling into the future at sixty minutes per hour...

I thought the Earth traveled faster than that!

I believe in the possibility of anything I can not personaly prove to be untrue through experiment, personal experience, some observation(though that can also be deceiving at times) and logical analysis.

It seems logical to me that if time travel were possible in the future, that some individuals would be interested in traveling back into time for various reasons. The "bitterfly effect" would indict that we should not try and alter anything through our intervention but I don't know of the validity of this...seems logical but is just a theory.

There is so much we don't know it eclipses what we do know(or think we know).

Time travel would lead to so many paradoxes that many scientists think it ought to be impossible. Time travel is just so far beyond human experience that I have to admit the possibility that they just don't know what they're talking about. The laws of physics as we know them seem to have some loopholes that would allow someone to build a time machine, however, you couldn't travel back in time any further than when the machine was first completed. That could explain the lack of future tourists...

If time travel was possible, the last thing we would have to worry about are paradoxes.

This is because if anyone's tried to change the past, it's already happened. All the changes time travelers would've ever made would have made up the present as it is today.

Everyone talks about going back in time to kill Hitler, but judging on how things turned out, odds are more likely they went back in time to put him in power.

Personally, I believe in the idea of the self-correcting timeline. In other words: Person X invented time travel. Afterwards, time travel becomes more common. Eventually, someone (for whatever reason) decides to kill person X, thereby cancelling out any timeline in which time travel took place. If you're a Star Trek fan, it would be like the episode "Year of Hell"...

i dont think time is linear. but i am crazy lol

hmmmm, and yet I wonder.......

The thing is, if at one point you could change the past, then humanity had a heyday trying to stop every conceivable tragedy from ever happening. And odds are that they couldn't stop every tragedy otherwise the world would be much worse off than it is right now. We're living in the end result of all time travel. Our timeline is the best they could do without making things worse.

Even though we don't know everything time travelers would need to know, logic would remain the same for them, I think. Go back in time, change something you didn't like. You've, just destroyed your reason for going into the past, so you wouldn't go. But that also means you couldn't have changed the past. Which brings us back to the beginning of the same circle again! If time travel really were possible, it still appears to be impossible to change the past. Even the mere presence of a time traveler from the future would, it seems, begin to change things and so disrupt the time line to the future, including the part about that particular time trip to the past. Ross

Time travel... interesting topic that i have mused over before.

I don't know if it'll be possible for any material thing to be sent into the past, but I think it might possible for something immaterial, like energy or information.

Though like someone else said, if it is possible, it's already happening...

and no fatal paradoxes have occurred since we're still here.

But what if i was to go back in time and kill my grandfather before he married my grandmother? That would make it so I wouldn't exist at all and therefore wouldn't be able to go back in time to kill my grandfather in the first place.

No, it isn't. It doesn't even seem remotely believable to me.

yeah...I've had the idea for a time-travel story. It's possible to travel in time, however, you remove yourself from the 4d frame of existence, when you come back in the future, or the past; the Earth has moved on from where you are. So there's a string of dead scientists stretching along the Earth's path through the universe...

A time-traveller (or temponaut) living in the distant past would either cause paradoxes all over the place or no paradoxes at all. In Micheal Crichton's Timeline, MC made it certain that what his characters were doing was not time travel exactly. It was described more as dimensionsal travel. The travelling to a place very much like the European Middle Ages our history knows, yet actually in some parallel dimension and not the literal chronological "past" at all. The science was way over my head as usual.

If I am the only version of me no matter where in time I go, I will cause no doublings or paradoxes. I can perhaps travel back just four years and when I arrive in 2004, I will have supplanted the 2004 version of myself.