Without the possibility of a design behind the universe, to ask “why” would truly be absurd.
Theistic evolutionists treat God as time-bound when it suits their argument, and beyond time when it suits their argument.
In Copernicus’ day, the Earth was thought to be at the bottom of the universe, the “sump” where all the filth collected.
The oversimplification here is staggering (Darwin and women’s rights?!) and would take an entire book to unpack.
Tyson ends his summary of cosmic history with a soaring narrative focused on earth. It sounds like the exalted prose of the book of Genesis.