A Quote by Stephen Hawking

If time travel is possible, where are the tourists from the future? — © Stephen Hawking
If time travel is possible, where are the tourists from the future?
The best evidence that time travel is impossible is the fact that we haven't been invaded by hordes of tourists from the future.
Today, we know that time travel need not be confined to myths, science fiction, Hollywood movies, or even speculation by theoretical physicists. Time travel is possible. For example, an object traveling at high speeds ages more slowly than a stationary object. This means that if you were to travel into outer space and return, moving close to light speed, you could travel thousands of years into the Earth's future.
With ignorant masses, the travel back in time is not only a possible travel, but it is the only travel!
The U.S., like any other country, allows tourists into its borders in order to make money off them, and there's nothing wrong with that. Why give out tourist visas if you're not going to let tourists be tourists?
If you wanted to travel backwards in time, you're out of luck. We have theories on how it might be possible to do so, but they all involve wormholes and black holes and other stuff that would probably kill you. If you want to travel forward in time, you just have to go really fast.
Physicists often quote from T. H. White's epic novel The Once and Future King, where a society of ants declares, "Everything not forbidden is compulsory." In other words, if there isn't a basic principle of physics forbidding time travel, then time travel is necessarily a physical possibility. (The reason for this is the uncertainty principle. Unless something is forbidden, quantum effects and fluctuations will eventually make it possible if we wait long enough. Thus, unless there is a law forbidding it, it will eventually occur.)
Unlike some of the time-travel movies I love, like 'Primer' or '12 Monkeys,' 'Looper' is not about time travel. It's about this situation that time travel creates and the people dealing with that situation. So narratively, the big challenge was to have time travel get out of the way.
I still oppose "Visit Myanmar Year," and I would ask tourists to stay away. Burma is not going to run away. They should come back to Burma at a time when it is a democratic society where people are secure - where there is justice, where there is rule of law. They'll have a much better time. And they can travel around Burma with a clear conscience.
Thinking about time travel may seem like something humans have been doing since the first caveman dropped the first rock on his foot. But, even to begin to imagine the possibility of time travel, your mind must be able to wrap itself around the notion of a past and a future.
Time travel is always more magical somehow when you go into the past. Traveling into the future is something you do, every day. You're just not going to get very far. So, I rather like the past travel.
I like the sci-fi channel. Just science in general. I came across a segment on time travel and how time travel is possible. We create a spaceship that's moving at almost the speed of light, we go in that spaceship in outer space, and we fly around for a year, when we get back to Earth, Earth would've aged 10 years.
I define science fiction as fiction in which things happen that are not possible today - that depend, for instance, on advanced space travel, time travel, the discovery of green monsters on other planets or galaxies, or that contain various technologies we have not yet developed.
It is delightful to read on the spot the impressions and opinions of tourists who visited a hundred years ago, in the vehicles and with the aesthetic prejudices of the period, the places which you are visiting now. The voyage ceases to be a mere tour through space; you travel through time and thought as well.
Finney is about the best writer of time travel stories ever, and I adore time travel stories - have to make a time travel game someday!
Trust me: you make a movie about time travel, and you know for a fact humans will never travel through time. The paradoxes that come up just from trying to tell a story with time travel really illuminates the fact that it's impossible. It will never happen. We can barely get through a movie that involves time travel.
Time travel may be possible, but it is not practical.
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