Is the concept of spacetime logical?

[Anonymous]

lol ya i had smoked before that hahahha. we can mesure time cuz we are stuck in it thats all if you can get outside of time then you can see it speeding up and slowing like in the time machine when the guy was inside the macine and everything outside it was changeing once you got outside of time you could watch it move around and swirl and build up in places like a river flowing over the universe but with everything inside time is reletive we will ever see it

[themanwithsauce]

i have this question, if time is a dimension then we can alter it to our will(to an extent). We have 3 physical dimensions as humans and we dont keep the same length height or width so we should be able to alter others including time right? I dont know if this is true or not and i dont know if my theory makes any sense at all.

[alainbryden]

wtf... if time is a dimention, then the theory is that we can alter it every time we change our velocity. If it isn't, then we can't. One is necessarily dependant on the other. You can't use one to prove the other, you get a vicious circle of stupidity.

[Thingy]

uhhh... but we do alter time for ourselves when we change velocity...

[DracIV]

If someone hopped on a space ship and went near-light-speed to the nearest star we know of, only about 1 year would go by for him. For us it would be 10,000.

Dimensions are not alterable. That man on the ship may have only experienced a millionth of the time we did, but time itself did not alter. Your interactions with dimensions can be altered, the dimensions can't. Just because I become taller doesn't mean I changed the dimension Height by stretching it. I can become fatter and not alter the dimension Width, for altering either of those two dimensions alters everything, and that type of interaction isn't possible. The same is true for Depth and Time. The universe must have all 4 of those to exist. Time could be summarized very simply: change. Change is everywhere, even in absolutely nothing.

[TheGuyWhoGoesMoo]

I'm stupid in this area, but I think that it is IMPOSSIBLE to tell whether time speeds up or not. If time speeds up, then everything else would too, our brains would work faster and the signals to atomic clocks would speed up and the planets would move faster and everything. I think this is one of the theories that's just nonsense to debate about. >.<

[Thingy]

Please read all the posts on this topic TheGuyWhoGoesMoo, i know its a long read, but it will keep you from saying something thats already been said.