Originally Posted By: MMike

My only question is, what is the boundary of the universe if its infinite? how can something have no limit?
if its finite, what is the wall that make the universe apart from the otherside?


Well Mr Krauss answered also this question

The terms "wall" or "boundariy" assume that you can watch the universe from "outside" but in the theory of relativity it does not make sense to speak of something "outside" the Time-Space
Dont think that I really understand what I wrote one line above laugh
Modern Physics is not intuitive but it is supported by experimental evidence