Originally Posted by

**RAJ_K**
It is logical :"Space is unlimited"

We cannot experimentally go to the one end to find it whether it is unlimited or not

But logically it has no end as no logic is available that shows space is limited

Really?

No logic at all?

Not even logic so simple a child could understand it?

1) Space (and time) "started" with the Big Bang.

2) The Big Bang occurred a finite time ago.

3) The expansion of space happened at a finite rate.

Ergo: space cannot be infinite.

If it's not infinite it's limited.

As for the other one (post #32):

We have a line of (let's say 6, but the actual number doesn't matter) inverted cups and I tell you that under one of the cups is a ball. And I further add that it will be a surprise as to which cup the ball is under - you may only work

*down* the line, i.e. check a cup then check the next, then the next...

Logic:

If finding the ball will be a surprise then, logically, the ball

*cannot* be under the final cup. Because, having turned over all of the other cups you'd know that there's nowhere else the ball can be.

That eliminates cup number 6 as a possible candidate.

This therefore means that cup number 5 is the last possible hiding place but it also means that, since, it's now the last cup and the previous caveat holds true, cup number 5 cannot hold the ball.

Therefore number 4 is the last one and....

Therefore, logically there can be no ball under

*any* cup, because if there were it wouldn't be a surprise.

The "experiment", of course, consists simply of actually having six cups, one of which has a ball inside it.