Time Travel

[KillerGremlin]

If you guys watch the video I posted, it sort of touches on time as a "dimension."

In Mechanics we treated time as a vector quantity. I'm not sure how you would treat time as a spatial dimension? My math sucks, I took Calc 3 and peaced out of engineering. Calc 3 is where you start to learn about the fun stuff, like the 4th dimension.

Anyway, in most senses time is a unit of measurement between two points. Humans like to have a START----------END.

I always am inclined to wonder, is time infinite?

[Typhoid]

Time is not a spatial dimension, however spacetime is.

[Angrist]

That 10th dimention video was interesting, but I still don't see time as a dimension.

I can believe in a 4th dimension, but it has to be something we don't know. Not something we already know, but always moves at the same pace in the same direction.

Let's say we lived in the 2nd dimension. Would we be able to see the 3rd dimension, while we couldn't change it or move through it? No, we wouldn't be aware of the 3rd dimension.
Which reminds me, time would also exist in a 2D or 1D world. They'd think that time was the 3rd or 2nd dimension. We'd laugh at them.

I've read about the theories. About the time-space continuum. It's why you can't throw a ball fast and in an arch. Or through it slow and in a straight line. Fun theory, but there are much more plausible alternatives.

I've been wanting to read Einstein's relativity theory. Haven't gotten around to it. Sure sounds interesting, but it still wouldn't prove that you can go back in time.

[Szymon]

My understanding of time is a straight line on a large open field. I move along this straight line, not being able to stray from it, slow down or speed up. If I were walking down a line on a field, I could move faster or slow down and stop, or I could break off from the line and move any direction I want to.

What does this mean? It means that time isn't really tangible, like an open field. We don't move through time like we walk on a plane, otherwise we would be able to stray from the line, speed up or slow down. We theorize that we can move from on physical point to another using worm holes, but if time isn't physical, is it possible to use a worm hole to do the same?

No fucking clue.

[Typhoid]

A wormhole isn't exactly transporting you instantly to a location far away - it's more like a hypothosized shortcut.