Zeno's paradoxes don't understand.

[jposs]

I'm pretty sure this is the arrow guy who couldn't figure out how to cross the stream because of the infinite points between here and there. I don't get it. I how there are many more points between here and there that we can count, or comprehend, the points at the end of the days have to be finite somewhere at least in my mind. Sure, many things we try to count are as good as infinite but it seems to our knowledge no matter how big the universe is it isn't infinite, so how can the points on some random short line be truly countless?

 

[Mutsi]

Do correct me if I'm wrong but isn't it so that when a short distance would be devided into two, into infinity you would have an infinite amount of points between here and there, there by impossible to cross the distance/stream.

 

[rollcast]

The Planck length step the limit as to how far you can divide it up

 

[jposs]

The Planck length step the limit as to how far you can divide it up

Forgive my disgusting lack of knowledge in so many places, mostly through misjudged choices, I recognize the name only. So far for lack of a better term the rest is all Greek to me.

 

[Mutsi]

Sometimes search engines can bring you needed information : http://en.m.wikipedia.org/wiki/Planck_length

 

[jposs]

Sometimes search engines can bring you needed information : http://en.m.wikipedia.org/wiki/Planck_length

True. Sorry, got a bunch of things on the go, I've said that myself a few times. Not the http://en.m.wikipedia.org/wiki/Planck_length part, but the rest. If I said that then asked about it I would feel different than the ignorance I feel now. Won't happen like that again, at least very often.

 

[Hurkyl]

Sure, many things we try to count are as good as infinite but it seems to our knowledge no matter how big the universe is it isn't infinite, so how can the points on some random short line be truly countless?

I don't see why this is a good argument, or even an adequate one.

The good reason to "believe" that, in the universe, the number of points in a short line is infinite is that physical theories that do a good job of describing reality describe lines as having infinitely many points.

 

[Thinker8921]

In maths, especially the Greek maths in those days, a point has no size only a position in space. So under this, it is reasonable to think that there are infinite number of points in a line.

 

[jposs]

In maths, especially the Greek maths in those days, a point has no size only a position in space. So under this, it is reasonable to think that there are infinite number of points in a line.

Thanks, makes different sense now.