Physicist Definitively Rules Time Travel Impossible

[Wintermoot]

even IF timetravel is possible isn't there a outcome where the present time would be fucked up (like killing the guy that invented the light bulb or microchip)

 

[Infernai]

So much for Owning my own Tardis one day..

 

[mattsipple4000]

Of course time travel is impossible. Everyone knows the Langoliers eat the past.

LOOOOOOOOOOOL!!!! all food from the past tastes like cardboard! i used to love that film! hahahhaa

 

[mattsipple4000]

how does anybody know that people haven't travelled back in time ?? how does anyone know if Hitler wasn't assassinated ?? if people had gone back from the future then they would bounce about saying hey i just came back! it would be like those episodes of Star Trek when they want to observe a civilisation in its making! using futuristic technology's to hide themselves and their plans while watching and maybe intercepting in some major points in history!
i dont know the science of time travel at all! just arguing that 1 point made!

 

[Nick Angelici]

you know, he only further enforced my belief in the multiuniverse theory

 

[tehweave]

WHYYYYYYYYYYYYYYYY WHY MUST YOU MURDER MY INNOCENCE AND DREAMS WITH SCIENCE? WAHHHHHHHHHHHHHH

 

[ImmortalDrifter]

People 500 years ago, said it was impossible to light a room with the flip of a switch. It's only a matter of time before people find a loophole.

 

[SL33TBL1ND]

I'm pretty sure that if time is just another dimension we could find a way to move through it.

 

[Deverfro]

Did he use 1.21 Jiggawatts?

 

[Megacherv]

Actually, he's not ruled out time travel into the future, which is sort-of possible. The faster you're moving, the slower time goes for you. Here's an example

You have 2 (theoretically) identical clocks. One stays in the exact same spot in on the planet, moving at the speed of the earth's orbit, whilst one is sent round the earth at such a speed that it returns to to its starting position (next to the other clock) in exactly one hour. The clock that orbited the earth in an hour would be slightly behind the other one, as it travelled faster.

Sure, it's not instant time-travel, but it's similar

You can time travel into the future (Technically, everyone is doing it as we speak), but not into the past. Because the closer you get to the speed of light, the slower time goes for you.

For example; Alpha Centauri is 4 light years away. If you were to take a ship and travel there near the speed of light, it would take you 4 years to get there, but for everyone on the ship, it would only seem like a few hours. You essentially travel 4 years into the future.

Going into the past would require exceeding the local speed of light, which would require more than an infinite amount of energy to do. It would also destroy causality, which opens up a whole new can of worms, physics-wise.

Well, that's the theory, anyway.

Destroy Casualty? As in the TV show? Fuck it, I'll risk it for that

 

[Rainforce]

but what about the whole "the closer to s.o.l. the slower your time" thing?
I mean, that MAKES it semiposible to travel "through" time.
(oh wait, totally covered with above post. damn.)

 

[DAJ_]

So what you're saying is:

Chrono Trigger - No
Chrono Cross - Yes

 

[Soviet Steve]

It was impossible for humans to survive going faster than 30 kilometers per hour two centuries ago. Not saying he's wrong but science is always up for updates.

 

[TilMorrow]

If we can travel back in time in an alternative universe via travel from Uni A (ours) to Uni B then shouldn't it theoretically be possible the other way round? Travel from Uni A to a point in time in Uni B then travel back again to Uni A to a different time period. Problem solved, Time Travel is now possible in our Universe, that guy didn't think his theory all the way through.

 

[NoNameMcgee]

I saw this Stephen Hawking show about time travel and he believed that going backwards was impossible but going forward by traveling at near light speed was! just it is a one way ticket

I saw that too, and im more inclined to believe Mr. Hawking!

 

[the1ultimate]

If there is one thing we know it's that you can't 100% disprove anything.

Admittedly I want to believe in time travel for my own selfish reasons, but even so, this is just a paper at the moment, and we've yet to see these results properly digested by the rest of the scientific community.

 

[Art Axiv]

"Man will never fly in a thousand years." - W. Wright.

 

[Live4Lotus]

This explains why marty started to disappear earlier than he should have...some other time traveler was doing the same thing in another dimension...about 1 minute earlier.

 

[GroovyV]

...Impossible? sorry. Does not compute.
I'm not giving up the dream

 

[mrF00bar]

As it so happens I know a time traveler, or he could just be mentally unstable but I prefer to believe the latter. So meh.