The problem with the early universe is that it was a much more dangerous place.
A skeptic might ask, “Couldn’t a more technologically advanced civilization develop new sources of fuel that require less mass?”
I was motivated to do this study after two papers were published in 2018 on the difficulty of launching rockets from super-earths.
In principle, the conjoining of the many Rare Earth factors could overwhelm the available probabilistic resources and serve as evidence for Earth’s design.
In 1972 French physicists discovered that natural nuclear fission reactors were in operation about two billion years ago in Oklo, Gabon in Africa.