People trained in the "hard sciences" seem to place a lot more rigour on numbers than the social sciences can really accommodate. Much of the scientific method

People trained in the "hard sciences" seem to place a lot more rigour on numbers than the social sciences can really accommodate. Much of the scientific method can't really be applied to humans in a longitudinal study so there's going to be some leeway and larger scope for variation than when performing tests on inanimate objects or lab rats for example. We all know this at some level. Nobody expects to be a mediocre violinist at the 59th minute of the 9,999th hour and to be a master one minute later. To me the book read like an extended musing on folk wisdom such as "practice makes perfect" and that famous Coolidge quote about persistence. Obviously talent, genius and education are factors, but persistence and determination are huge.