The universe cannot be infinite. If you're able to observe that galaxies are moving away from each other at an expansional acceleration. If the universe is expanding we can extrapolate backward in time and say that the universe was once smaller. Infinite can't become smaller and larger. The space time field is finite or at least from what we can tell as of right now. So my question is, what shape is the universe and what is it like to be near the edge? What is it expanding into? Or perhaps that too human of a question to ask and my brain just in not wired to understand the complexity of how the universe works.