Skip to comments.Quantum time machine 'allows paradox-free time travel'
Posted on 07/26/2010 1:28:23 AM PDT by LibWhacker
Quantum physicists at the Massachusetts Institute of Technology believe it is possible to create a time machine which could affect the past without creating a "grandfather paradox".
Scientists have for some years been able to 'teleport' quantum states from one place to another. Now Seth Lloyd and his MIT team say that, using the same principles and a further strange quantum effect known as 'postselection', it should be possible to do the same backwards in time. Lloyd told the Technology Review: "It is possible for particles (and, in principle, people) to tunnel from the future to the past."
(Excerpt) Read more at telegraph.co.uk ...
The world gets stranger every day...
Let me know when I get a time machine for $795 at Best Buy....
I appreciate the science, but my first thought was — boy, if I could go back 20-30 years in time and buy MSFT, INTC and some other stocks...
There are those that say that if time travel was possible, we would already have seen visitors from the future. Then again, our current world must seem so prehistoric and harsh to peoples of the future. After all, if it were possible today to travel back to say, the Middle Ages, would anybody actually want to go there?
After the terribly stressful last six weeks and corresponding 20/20 hindsight, I’M IN. Where do I sign up??
Someone gave an interesting insight into the problem with time travel.
When you go into the past or future, the physical space around you isn’t still. The universe is expanding, the Sun tugs the Solar System at breath-taking speed into the Milky Way, which too is in rapid motion. One second of time travel implies a change in your physical position to such an extent that you would be over a million miles away from where you were in the “present”.
I’d LOVE to go back to ancient Rome. But then I remember there is no way I could pass myself off as a Roman citizen and would probably end up enslaved or tossed to lions.
And harder to keep up with! I used to be ahead of the curve on almost everything, could always see a use for every new piece of technology that came along. But now I can’t. I mean, what’s the use of Twitter? Or music on your phone?
The more you think about time travel, the more difficult and complex it becomes.
Except the speed limit of "c" is on the order of 190,000 miles per second.
Plus there is the relativistic issue of choosing the supposedly stationary frame of reference. How does the time travel machine "know" that?
Isn't that what Obie's healthcare bill promised???
Maybe it was an hour, LOL!
I didn’t realise that error. Perhaps it could be corrected with an idea of distance, rather than velocity? Heh heh!
Very Presbyterian, lol.
I think then you should use a spaceship of some sort. With computers we should be able to calculate where in this solar system we would be and what part of the galaxy and what part of the universe, etc. By the time time travel was actually possible that would likely be the best way.
Mine too but then when I arrived back here, the Feds and the IRS would probably be waiting in my driveway......
Maybe our mess around us is the result of some Liberal time travelers.....yeah!!That’s the ticket....
Been there, done that.
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