slowmutant wrote:
Shiggily wrote:
starvingartist wrote:
perhaps spiral is a more apt picture than circle? and each end of the spiral stretches out along a curve to come back behind itself again making another spiral....the ends of which stretch out on a curve that is another spiral, etc etc etc......so spiral, not circle. still cyclical, though. yes?
if I remember (I read it a year ago and I have a bad memory) the universe was likened to a nonspherical "balloon" and the concept of time was discussed as spacetime.
I tend to think that time is cyclical, because everything in our world is or can be reduced to a cycle. Within the each cycle, there is linear progression.
"Spiral" implies something geting bigger, accumulating. Which is an intriguing thought.
no, wait let me try to explain better, so you see it is not getting bigger because it is infinite. inifinite can not grow to bigger than what it is is.
picture yourself standing on a line drawn on the ground. this line is time. it stretches out ahead of you to the horizon (the future), and behind you into the past. now imagine, like the surface of the earth, this line is curved down away from you....and continues to curve until it eventually ends up behind you again. this would be one "cycle" or circle. now imagine that the ends don't EXACTLY join up where you were standing on that "line" but actually pass by infinitesimally close to each other, and continue on, along the same curvature. if both ends continued to do that, you would have a spiral that stretched out forever in one way and forever in another. now presume once again that that path the spiral is following is not a perfect straight line either, but another large curvature, like that of the earth, where the two "ends" of the length of spiral (now looks like a slinky, i guess lol) curved back towards each other as the original "time-line" did. and when they came close together again, passed very closely by each other again, and this would form another spiral, whose two ends stretched out along a curve and made anther spiral, and another, on and on into infinity. there is no "getting bigger" because these "cycles" that form each spiral are loops of time where the universe is created and imploded, over and over again.....infinitly. i don't know if you could say that anything e were being added with this process. that would be arguable, i think. you could maybe argue that time would have to be constantly being added to make this argument true.....but if time is truly infinite, can it be "added to"? or is it's shape simply infinite, and we have to see it as getting larger because "adding" and "beyond" is one of the few ways we can actually imagine the concept of infinity itself. something going on and on, getting longer in the distance or larger with time. that one is beyond me, i think.
Last edited by starvingartist on 31 Dec 2008, 1:43 pm, edited 1 time in total.