Is the universe really as big as we think it is?
The concept of light years, billions of stars in our galaxy and then billions of galaxies outside of the Milky Way is just too big to get a grip on. Maybe there is another concept of distance in a physical law that we haven’t discovered yet, and that will make more sense of these distances and scale? Maybe the micro-world is as big relatively to the universe, that is, the relative distances between individual components of atoms and molecules is just as vast as the universe is big? How can there be an end to the universe – where is it located if it is confined in some way? We know so much – why don’t we know this?