Could true time travel ever be possible?

No. There is no time (sic) to go into the details, but as a taster, consider basic technological "advance" over recent time. Almost all stuff reached development pinnacles soon after invention ( hammers, door handles, wheelbarrows.......... airplanes...) and now rest, fully invented, forever limited by the Conservation of momentum, the conservation of mass/energy, the conservation of angular momentum. There is no way round the fundamental rules ( fortunately - the Universe would be different if these rules were not in place. ) and there never will be. Have to go ...

save your time and money and buy the cd's and videos???? one question: how do you get back to the present when you find out that there are no computer video games like wow and gta4 and all that garbage. computers in the 80's did not run any faster than Megahertz, not gigahertz that you need now. lol, ipods, mp3 players, cell phones and blackberrys, recordable cds and dvds, BROADBAND Internet... still wanna go back???

Well why not!?

I garentee it no. I say this because think about it,if in millions of years in the future we invent a time machine some one would want to come back to this time therefor allowing us to know that in the future we will have time machines. This was very interesting to me when i first heard it and im glad i could pass it on.

I am not going to say no because Science is limited to the imagination, so lets say we can as of this moment, i think that it would be like a 3d movie you can watch but cant touch. so to truly answer your question yes i believe all things are possible

honestly i think it already is but its not perfected and very dangerous ( look up the philadelphia experiment ). and dont go to the 80's.yeah some of the music was awesome but our clothes were horrendous and our hair was huge .....i mean HUGE!!!! aqua net all the way.

Without being long winded, time is one-directional.

im 100% sure that one day, someone will invent it. not anytime soon unfortunately

Travel is forbidden into the elasped past. One cannot go see Rome as it was, for instance. But one can travel to a nearby past, one that might seem very similiar to the Rome that was, as long as it takes place in an alternate reality. Time travel is about travelling to other universes, not into a "time that is passed", as in, History. The past has trully passed. Parallel realities are much more logical. We know that the era of Rome is over now. It cannot be reached because the events have already occured. Time Travel into the past is not allowed because one's own arrival there (I call it a TIMESPLASH) would disturb the course of events, creating an alternate reality. You see, even the slightest deviation from the past that WAS makes it disimiliar from what occured. We would bring knowledge of the future into the past, and that makes us an alien. So, when one TIMESPLASHES one creates an alternate reality. This reality is not instantly tied to future events that have already occured, but is simply happening for the first time, in the moment. If you think of a stone entering the tranquil water of history, the time traveller causes ripples upon this surface, changing it. A parallel reality is forged by his/her arrival. Time travel is about travelling to other universes, not the past that has already transpired. This wipes out silly paradoxes completely. Anytime you time travel, you go to a new reality. And you can't go to the same place twice, at the same time, so there can be no conflict. Lightning does not strike the same place twice, essentially. If aliens (and they must be aliens, or strangers) are coming from A (with emphasis) future reality, they are probably lost and know little about our culture or problems. The TV show Slider's talks about the multiverse concepts, that there are infinite parallel worlds. Of course, they get lost, and that is what is likely for any "Time traveller"... There are a multitude of "pasts" and "futures" that are available to reach. Time is not about ONE past and ONE future but many possible pasts and futures. That is the truth of time travel. Check out the series, "Slider's" for further clarification about parallel realities. One can only observe the true past, not influence it. Arrival in the past creates another time line. Here's a little scenario I came up with to demonstrate how making money with knowledge of the from the future about the past is risky, if not impossible. Say that you manage to find a world that is quite similiar to our own, and by using a time travel device from the future, you arrive there, as a stranger. You are able to exploit some of the information there, (say, a virtual cure for something like Herpes) and you make a bundle of currency. You take it back to a time very much like your own, and make a deposit in a bank. Totally psyched, you decide to go back to another reality, they return and add more money to your stash. You do the same thing, then return back to a time that was similiar enough to your own future so you will be assured that your money is at least there. You walk into the bank, with your account number, but it isn't the same. Opps! You errored! In fact, a guy matching your description opened that account, the one you can't access because you don't have the number! That person is you, but from a parallel dimension. He is doing the same thing you are doing, but without knowledge of yourself. There are two of you, and you cannot get back to your the future where you deposited the money, it is now lost. Maybe your double has taken the money out, or he has vanished. In any event, the account number is wrong, the back won't let you into HIS account. Goes to show that geting money unfairly is not good karma....hehe One way to return to the past (although thereby creating an alternate reality in the process) would be to evoke memories of the past so vividly (tuning in) that one would instantly be transported back to the time they occured. This would be possible once we know about how memory is stored as latent energy in a physical object, perhaps in a rock, or in water. In the movie, "The Butterfly effect" the main character uses his memories of the past to propel himself there, although when he does he creates alternate realities.