You don't know that. Sure there's lots of worlds there and even more space between them, but size and scale isn't everything. Meaning may be unevenly distribute

You don't know that. Sure there's lots of worlds there and even more space between them, but size and scale isn't everything. Meaning may be unevenly distributed. Universe could be fractal. Those could be minor variations of the same world, rather than many different ones. They could have laws of physics distinct from ours for all we know.