What’s outside/beyond our observable universe?

Question

Is it like that scene from Spongebob where Squidward was alone in an empty white void?

In: Physics

Answer 1

We can assume that there’s nothing special about our region of the universe. But we’ll never know what’s outside the observable universe or if there is anything at all. And also, we don’t need to know. Whatever’s outside can’t affect us in anyway and we can’t interact with what’s outside at all. (even gravitational force from outside the observable universe doesn’t reach us). We can have a perfect explanation about the observable universe without knowing anything about what’s outside. So it doesn’t matter at all.