Is time travel compatible with determinism?

Is time travel compatible with determinism?

time travelling is a sci-fi concept and determinism is a philosophical concept

tell me why you posted this on Veeky Forums

Yes.

Time travel is just changing your location in an infinite multiverse of every possible scenario.

Does there exist a scenario where humanity mastered the universe just from Earth alone and are just chilling for an eternity?

Infinite scenarios match that description.

>time travel
we don't discuss autism here

wtf

why is that board so spooky??

I guess what you really meant to ask is:
"Can you send information/matter backwards in time and still preserve the apperant causality of the universe"

I'm not really sure, but my guess would be NO.

Here is my reasoning:
If Einstein was right and the theory of general relativity holds true for our universe, then you simply can't go backwards in time.
But let's say that Einstein is right and you still somehow manage to send something back in time, then you would have broken some fundamental physical laws, which we regard as true.

Imagine sitting in a room and then that object form the future pops in front of you.
1. The conservation of energy had been violated.
2. The conservation of momentum, had been violated.
3. Causality has been violated.

Imagine you have thrown a paper ball towards the bin in your room.
The object from the future appears after you've already thrown the paper ball, between the bin and the paper ball.
Then the ball won't end up in a bin.
Even though you were carefully observing everything and have calculated the trajectory of the paper ball.

Or let's go a bit further, let's say you send a bomb back in time.
Now the bomb materializes in your room and explodes (you are not in the room).
The blast would give everything in your room some moment of inertia.
When you enter your room, you'll see a mess that happened for no apperant reason at all.

It's like locking a gun in a safe and then later oppening it to see that the gun has vanished.
Maybe the gun traveled to another time.
Or even weirder, you open the safe to find a gun and a cake.

Then you'd start to wander what good are safes in such a universe...
Or you could reason a bit further and say "What's the point in studying physics, when things seem to happen for no (yet apperant) reason?".

But on the other hand the Quantum Eraser experiment, seems to show us that an entangled particle's position really does depend on events which happen in the future.

So I don't really know.

Determinism is unverifiable even if you have time travel. The only way to verify it is if you had the source code to the universe.