What happens if we go faster than light? Do we go back in time?
No idea physics is complicated. Somewhere i got the idea that mass increases as velocity increases and was going ti say if we go faster than light we might turn into a black hole but then i read a little bit to not sound dumb as i am and im more confused now than ever
I read online that if we go faster than light, we travel in time but they didn’t precise if we go into the past or the future.
I think i read if you travel at the speed of light time will move slower for you relative to other people so they will keep moving forward and you will possibly not age at all. The math would determine how long but its possible you coukd still be alive 100 or 1000 years in the future without aging
I think I read that time don’t exist in black holes. Others say that black holes brings us to a different parallel universe where time is different.
I really have no idea about the science i think for extremely mathematical rational minded people it is a good thing to think about but for me i think all sorts of far out things about it that dont make sense
Interesting to think about!
You travel into the future when you go faster than the speed of light.
Edited: my husband said you can’t travel faster than the speed of light. I see the article says you can though. He says if you go close to the speed of light you can go into the future. You can’t go into the past.
Yeah thats what i read too
The speed of light is the cosmic speed limit and you can only travel that fast if you have no mass which means no spaceship can travel that fast because it has mass. Once something has mass you need infinite energy to propel it to the speed of light, there is no such thing as infinite energy so it’ll never happen. Light particles are called photons and have no mass which is why they can travel at that speed.
However, this speed limit is for things traveling through space. The fabric of spacetime itself can expand faster than the speed of light.
What physicists are trying to do is invent a technology that can warp spacetime and that would allow superluminal (faster than light) travel without breaking the laws of physics.
Time slows down the faster you go. So by going very fast you travel into the future relative to a person standing still. But for you, the person traveling near light speeds, time would seem to pass the same as it always does.
I probably should not have included my husband’s comment. I really only wanted to respond to say you would be going into the future.
In the artice they talk about things that have negative energy/mass.
I wanted to understand this stuff so I went straight to the source. I bought this book 20+ years ago.
Relativity by Albert Einstein
Me too. 1515151
I heard uranus was a black hole.
prove me wrong 
The article mentions exotic physics. We can’t even begin to try experimenting with it at this point.
But this article is cool because it offers a way to warp spacetime without negative energy. It could be done with energy we know how to make. The problem is at this point it’s an insane amount of energy.
Haha 
15151515
If you have a motorcycle driving at 100mph and it shines it’s headlights, then the light still travels at the same speed as if the motorcycle were standing still relative to the ground (earth). It’s not the speed of light + 100mph like in classical theory.
Two things to know about are length contraction and time dilation.
If something is at rest relative to an observer, it’s length is maximal. If it is moving it squashes itself together the faster it moves. Our physics professor joked about fitting a car that’s to big for the garage by having it entering the garage at a very high speed. But somehow you also have events, and it doesn’t make sense to talk about it like that.
Time dilation is means when something moves at a certain velocity relative to you, it’s time is moving slower from your point of view. A photon at the speed of light doing it’s thing actually doesn’t age at all. No time passes for the photon from your point of view. If the photon was created at the beginning of the universe 13.77 billion years ago no time has passed for it at all because it’s moving so fast.
General relativity also talks about acceleration and not just speed. There you have geometric “distance equations” called Einstein Field equations. Anything travels through spacetime as a geodesic (shortest path). The equations have terms T (energy momentum tensor), lambda (cosmological constant), R (Ricci curvature tensor, scalar curvature), g (metric). They are used to calculate for example the black hole radius or the age of the universe (Friedmann equations).