The report opens up a whole new can of worms!

While Earth's gravity produces gentle distortions in spacetime the LHC energy can distort time so much that it loops back on itself. These loops are known to physicists as "closed timelike curves" and they ought, at least in theory, to allow us to revisit some past moment.

The CERN particle accelerator has already been cooled down to its operating temperature, (270˚ Celsius) and the first ‘protons’ have been inserted!

The first particles have been injected into the biggest atom smasher on the planet, marking the start of the countdown to probing the secrets of the universe.

So keep an eye out for project leader Lyn Evans popping up looking confused in a mall near you!

H



(visit the link for the full news article)

Edit to include ex

[edit on 21-8-2008 by Havalon]

Isn't this a paradox? Wouldn't they already be here?

But more so
my comment is based on odds


the odds that in the next 500,000 yeras of human existance (or whatever amount you wish to designate) that not a single person exists with both the desire and capability to travel back in time and destroy all of existance is not odds i would want to bet against


it only takes 1

I think we're talking about a temporal dimension in a way that is incompatible with the properties it possesses.

Just like in a 2-D Universe you might wish you had the 'power' to go through one of the 2-D 'walls'.

BUT, to 'get to the other side of the "wall"' you wouldn't go through it, you'd go 'over' it, a concept which doesn't exist in 2-D Universes.

So by talking about going 'back' in time if we're really talking about 'hopping dimensions', then there's no paradox and 'people' don't (and can't) go back to their own time and meet themselves.

Fifth dimensional beings might be able to 'go back in time', but it would be something different than what we're trying to discuss.

2 cents.

I have a time machine, but no one believes me since I can only send people back in time and they get stuck there. So those that I do send back try to leave me little gifts, like the Pyramids and Stonehenge.

Then there is the problem of language. Everyone always askes me why they don't just leave me a note written in stone in English. The problem there is, that every time I send someone back, English changes from what it once was without any of us here realizing it. So in other words, yesterday we were all speaking ancient Greek, and a few days before Aramaic, etc.

Just kidding actually. Just some free-style thinking about time-travel.

Another poster mentioned that one can't travel back past when the first time machine was invented. I have heard that before, and figure that is probably true, but of course that is only a "best guess" with our current understanding of the multi-verse.

this is old news isnt it? the fist link go;s nowhere for me, and the second is to the mainpage of the telegraph

I wonder if this thread leads to disappointment or truth in the future...if only I had a time machine.