When we arrive at the beginning we reach a paradox. What determines the ultimate boundary conditions at the origin of the universe? Clearly these are not up to us to choose, and we can’t try out different conditions to see what kind of universes they produce. That is, the beginning of the universe poses a problem of boundary conditions that we do not control. Instead, very interestingly, the conditions at the big bang would appear to be dragged into the laws we seek to understand.
