The real reason you can't travel back in time

"You seem to think you're the first person to think about these things, OP."

Not at all. I'm just curious why it never comes up in discussion. I do think it's a point that's often overlooked so by 'on to something' I don't mean I think I'm special or etc. if that's what you're reading into it.

"Time travel into the past would require harnessing wormholes, which we don't know much about. And if that were possible, there are paradoxes involved (see:grandfather paradox).

Also, if it were possible, then we probably would have been living amongst time travellers throughout history,"

These things have come up when I play with the idea of time travel, speaking with a friend etc. I'm not unaware of them. The grandfather paradox is actually an example of overlooking the fallacy I brought up.

The grandfather paradox can't exist, due to the 'no two you's' being able to exist in time at the same time.

Sometimes I pray that they invent technology to prevent anyone under 30 from posting on serious forums. Or at the very least a teenager filter, so the tiresome 'I'm too cool and you're stupid' comments would go away.

Every single adult who sees comments like 'you're sh*ting into our brains' and 'you're a retard' instantly recognizes that the person saying that, has absolutely nothing to say, and is just being a kid.

If you're an adult saying these kinds of things, it's time to consider stopping, if just to stop wasting your own time.

>Also, your brain can only perceive going forward in time (this is apparent by every day experience and no known cases or perceivable cases to prove it otherwise.) Therefore, even if you WERE travelling backwards in time, you would perceive yourself as going forwards in time.
This is pretty badly stated. Just because it has never happened doesn't make it a good case that it is literally impossible for our brains. Our brains function perfectly fine even when time dilated, so it's entirely possible our brains would be just fine going back in time, although this is does depend almost entirely on how you do it.
>you couldn’t exist in the same universe because ‘you’ already exist in there. There is no reason or mechanism to suppose that there can be two you’s existing in the same universe. Even if ‘you’ are just scattered atoms throughout the cosmos, your double existence would theoretically displace the entire universe.
This, also, is dumb and makes no sense. Why should the other me hold any significance to me? He's completely separate from me, just like any other human, why can't I exist in the same universe as him? All we truly share is DNA. What the hell is this 'youness' and why is it unique?

Can you simplify your theory in a few sentences or less?

>it's an "OP comes up with an idea out of his ass to disprove something" thread
Not science, did not read. Please don't post again.

You're misunderstanding the concept. The point is that there wouldn't be two you's.

The atoms etc. that are you, still exist in the past, even though they aren't together in the present form.

There wouldn't be a separate you. That's actually the fallacy I'm describing here.

If someone goes back in the time, from the point of view of the past, another, older you just materializes out of nowhere. A completely separate second set of atoms. What you seem to be describing is rewinding time for EVERYTHING, which no one gives a shit about because everyone agrees it would be useless because no one would remember anything.

It would take me a long time, but probably.

K I'm just going to start ignoring people like you, who have absolutely nothing to say. If you didn't want to read it, why waste your and my time by replying to something you haven't even read.

That's exactly the point. There is no reason to suppose that a second you would materialize out of nowhere.

Going back in time would, I'm arguing, by necessity have to be a reversal of time, actual travel would be impossible in the science fiction sense we imagine it. We personalize it when we think about it because we'd like to 'travel' there but other than personal reasons, there is no actual reason to think we could do it that way.

>The grandfather paradox can't exist, due to the 'no two you's' being able to exist in time at the same time.
But we don't know that this wouldn't be possible.

I understand your argument about time being transient and all, but until we discover wormholes and realize their full potential, we'll never know whether it's possible or not.

Also, I think it's worth noting that the the 2yo "you" is not the same as the current "you", yet they exist in the same universe.