A true Bayesian I don’t think would use evidence for life on earth as the silver bullet for life elsewhere. They’d at least set up a model that considers all po

A true Bayesian I don’t think would use evidence for life on earth as the silver bullet for life elsewhere. They’d at least set up a model that considers all possible planets in the entire universe and test to see if these putative signatures even give you the power to identify earth as a life holding planet with confidence.