A theory about time travel and the multiverse

[rtxoff]

ok gpsic, lets forget if time travel is possible or not,. Right now nobody can affirm or denied nothing. I personally think that is not, so lets continue.

I still miss your point about the VCR tape...

You think that because is fixed then the universe is a VCR and the only way to go back is in first person watching all your pass actions pass until you reach the point you want?

Why you think that?

The VCR tape was only an example how it would look like if someone was able to reverse time flow in a fixed timeline. I really don't know why it is so hard to imagine it? Did you ever posess an VCR and did you ever watched a VCR tape beeing played backwards?

This example is the best way to picture a fixed timeline. And my objection was that your graphics just showed an example that should not be valid for a fixed timeline.

If you understand or not i don't care anymore, cause by now i have no more means to explain anything further about it.

We can think in the universe as a 4d block, time only exist inside the universe. But our universe is like a brane in the bulk, the bulk has its own time flow. So if we can travel across the bulk, then we can see our brane and enter in any point of that brane (4d point, time and space).

So I dont know where your VCR concept appears.

Well IMO we can not, we could enter it only again in a point that is our present or future but not the past.

[Bill Phil]

The concept here is multiple fixed timelines.

[AngelLestat]

The VCR tape was only an example how it would look like if someone was able to reverse time flow in a fixed timeline. I really don't know why it is so hard to imagine it? Did you ever posess an VCR and did you ever watched a VCR tape beeing played backwards?

Heh, is so hard to imagine because it does not work like that

You have the notion that the only way to go back in time is by reverse you own acts in first person until you reach the point on your life that you want..

Something like "Groundhog Day" or "butterfly effect" but without being able to change nothing.

And you can not go back in time before you born.

Yeah, that has nothing to do with the universe as a block or the fixed time theory as is called here.

So check your source to see if you are talking about the same thing. There are only 2 possible theories to time travel inside physsics.

-One is the universe as a block, which is derived from general relativity, you can go back to the pass in any point of the universe just in the same way you cross the street, you move to other place (4d point) in the universe.

-the other is a different universe and time line for each time you go back in time (or something like that) which is rerived from quamtum physsics.

I am bad explaning this, see if someone else share your opinion or ask to @K2, he will be able to explain this a lot better than me. I guess he is advocate of the multiverse time travel theory. But he must understand both for sure.