A quick simple doodle for anyone who doesn't get the whole spacetime thing.
The red object is stationary, the blue object is traveling at c, and I guess the green one is going at 0.5c. Since relativity is, you know, a thing, whichever frame of reference you choose will always be the red object, which is moving only in space and not in time, as its path (worldline) on the graph shows. Now choose an arbitrary length of time t in our frame of reference (red) and compare with worldlines of equal length of the other two objects. You can see that at time t, the green object moving at 0.5c has moved less along the time axis ("experienced less time") than the red object, and the blue object moving at c hasn't even moved along the time axis at all--it can't! What if we decide we want to use the green object as our frame of reference? Well, now the red object is moving away at half c, and the blue object is still moving at c, because massless objects always move at c in any reference frame... this is the gist of relativity. This is all really basic and facile and I'm not going to overstep my layman boundaries, and I've spent way too long on this post. I'm no expert, just a common dummy, but I hope I explained this decently enough for some people to get the general (lolol see what i did there) idea.
Infinity is a number. It is every number. It is an incalculable and irrational number.
If you want to take Star Trek physics into this, Warp 10, which could be defined as infinite speed, is being every where in the universe simultaneously.
That being said, until humans are able to travel faster than the speed of light, none of this will have any actual bearing in reality.
It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shakes, the shakes become a warning.
-Kujako-
I just liked that she could speed and reverse time like a dvd player. Other stuff I thought was cool the evolution of sight and ability too see carrier waves into cell phones.