I gotta say...
The fact that humans look at things we cannot realistically observe, from the smallest space between atoms to the farthest reaches of the universe, and instead of simply shrugging and saying, “Well we can’t know what’s out there for sure, so we can’t guess at the possibilities”; we think of nothing but the possibilities!!
Like, our ability to imagine, theorize, and postulate is so spectacular! Somebody really saw an infinitesimally small space between the building blocks of reality (atoms) and thought, ‘What if there was a whole universe in that space, or more, many more universes?’ and pocket dimensions, and relative space-time. All that, we can imagine in a space so small that only the most powerful of microscopes could make it out.
And it’s the same way on the other side of the spectrum; out in the farthest reaches of space we search for more life. The universe beyond our atmosphere is a vast, cold, and mostly black void, that we can barely dip our toes in without billions of dollars investment. Yet, we do it. We picture entire planets full of exotic life and alien society; massive space-ships and galactic alliances. Without any evidence to prove any such thing even has a possibility of existing out there.
We even stretch this idea so far as to connect the two extremes. Imagining, what if at the very ends of our universe we find it contained between two or more atoms; unfathomably large from our perspective, but unimaginably small from the perspective of some greater being that cannot even notice us between the building blocks of their reality.
We just can’t say for certain what is there in those spaces we cannot comprehend, but that doesn’t stop us for a single second from trying to guess at all the possibilities. And that drives us to wonder at so much, so many things, even to the point where we question our own existence, and our purposes here on this planet, in this reality. We even guess at the nature of multiple realities, stacked atop one another like layers of sediment in a riverbed. Our curiosity seems boundless...
That says something truly profound about humanity, I believe.
We are here, in one way or another, to keep guessing...