Hi the idea of this post came from here https://www.physicsforums.com/showthread.php?p=1760387#post1760387 I have browsed through some posts, but didn't really found what i was looking for, so i am making a new post here ///// Could it be possible, that there be more than one universe, forming a bigger whole. Like as we might see an atom as a particle, 'bigger entities' might 'see' a universe as a small particle. the idea, that we can always go higher in particle 'level' (level a : Quark / level a+1 : protons, neutrons, ect / level a+2 : atoms / ... / level a+n / level a + n + 1 / ...) In the previous post : But with a sphere, we can draw boundaries, just like we do a world map. If you cross the boundary you end up on the other side on the map ? is that what would happen in the universe ? crossing the edge would make u appear on the far edge ? Or did i just didnt understand well what he meant ?