-How did ancient farmers find medicinal use in Neem, Tulsi?? How did they start growing rice,wheat?
The scientific belief is like apriori knowledge while empirical rationalist view of science is posteriori.
Francis bacon & many observational rationalist believed that observation lead us to inferences which can be used to create a testable hypothesis-- The hypothesis lead us to a scientific belief if we can devise an experiment which can be repeatedly tested , conclusively proven under similar set of conditions across the planet!
Both the models are not 100% fail safe--
Theory can be wrong many times- An experiment devised