The Anthropic Principle—stating that the universe we live in is fine-tuned to host life—was first proposed by Brandon Carter in 1973. Since then, it has sparked significant debate.

This is called the “anthropic principle.” For some, it’s the only answer we need to explain, well, ... This theory is called cosmological natural selection (or CNS for short).

For life to flourish, the universe had to meet a nesting doll of conditions. The quantum fluctuations that led to the Big Bang had to be just right to kickstart the cosmological chemistry necessary ...