I'm surprised that he compares the quality of economic models with those from physics. No matter the discipline it's still just a model -- with all their streng

I'm surprised that he compares the quality of economic models with those from physics. No matter the discipline it's still just a model -- with all their strengths and weaknesses. If he liked the rigor of physics in school, why not pursue a career in mathematics with a stronger focus on concepts? I get the feeling that he would enjoy the purity of it. If that lacks practical benefits, theoretical physics might be a good choice.