I Just want to know; what do people think time is; a Vector or a Scalar?
Post with your opinion, I want to see what most people think about this.
Ok, to avoid confusion:
A Scalar is a quantity that has only magnitude(size); for example: Distance, Speed, Mass.
A Vector is a quantity that has magnitude(size) and Direction(that it acts in); for example: Displacement, Velocity, and Weight.
But how can we confirm that time is a physical dimension or has any physical properties? It's different from things like mass or velocity because those have physical properties that can be felt and/or seen.
We only see time with clocks, which may not be accurate at all. Plus we don't really see time, we just see the measurement of it.
Ah but, mass is no dimension and velocity is a combination of 4 dimensions, and we cannot see Velocity, only it's effect.
another reason that we struggle to view the effects of time is because we only see 3 dimensionally
I think it's a vector, like if time is our movement through a forth dimention or something. The present is a snapshot of the other three at any given point along the forth, maybe...
Problem with that for me, as an ignorant fool, is that it implies that the forth dimention is all laid out, and everything is predetermined, unless the forth dimention expands just like space does into nothing, which it probably does.
That seems a bit wastefull, but who am I to say :) It's just easier for me to think that the future doesn't exist yet until it does, which is what I imagine happens continuously in the present. Space expands into nothing, why shouldn't timedimention?
But now as I type, and I think about the past, and the possibility that it in theory could be possible to go backwards...It should mean, that at every point in history or timedimention(s) there are people and stuff living/existing there in their present. And who to say our present is the presentmost? Nevertheless as there are more or less known history between now and back then (doesn't matter when), if their paths (future) are not predetermined by the history known to us, then who's to say it's our past we've travelled too, and could our past really exist then anymore? I guess I get your point, somewhat ;) It wouldn't just be an infinite number of futures, but an infinite number of pasts too.