> You could argue, OK, epidemiology isn't a hard science. Maybe it's actually a social science. But at some point it becomes tautological and the definition of

> You could argue, OK, epidemiology isn't a hard science. Maybe it's actually a social science. But at some point it becomes tautological and the definition of "hard" science simply becomes any science in which you aren't personally familiar with the disputes. The examples given by the OP were: "astrophysics, philosophy of mathematics, molecular biology, quantum physics etc".