Overcoming so many hurdles for so many life forms would surely require intelligence:
Tag: Rare Earth principle
Templeton winner Marcelo Gleiser endorses the Rare Earth principle
Gleiser: So when people talk about Copernicus and Copernicanism—the ‘principle of mediocrity’ that states we should expect to be average and typical, I say, “You know what? It’s time to get beyond that.”