What Outside The Onion?   

What outside of the onion?  Imagine, each layer of the onion represents a dimension.  The gap between each layer is insignificant to humans, but it's unimaginable and expansive to onion beings.  So, if the onion beings ever imagine what is outside of the onion, they can easily!  The trillion-dollar question is can they really ever imagine what are the things actually outside of the onion, right?  With this in mind, let's turn our attention to humans.  Can we ever imagine what are the things actually outside the universe?