Space is infinite. It seems most humans cannot comprehend/accept infinity. Without understanding infinity you will have a hard time understanding space.
That is not a known fact, we have no idea whether space is finite or infinite, whether it has boundaries or not. Admittedly at least a finite universe with boundaries seems kind of a strange idea, but who knows.
Can some humans comprehend infinite? I mean truly.
No. That would take infinite time to comprehend, right?
To understand recursion, you must understand recursion.