The finance academics borrowed the mathematics from physics and the rigor from mathematics, but they forgot that, at the core, theirs is a social science. If they wanted to borrow anything from physics, they could have borrowed the good habit of comparing their theoretical results with experimental data. In physics, a theory is little more than mental masturbation until it's confronted with experiment. That nicely summarizes the state of contemporary academic finance: mental masturbation. Just because physicists were blessed with the ability to model natural phenomena using mathematics, it does not mean other scientists have such luck.