That’s ok, he’s done pretty well following his own instincts.
Railroads may not be as sexy as airlines but you can’t haul the coal to make the power to charge electric cars with a jet.
He doesn't generally do what he does by instincts, he only invests when he can figure out how to value the company, which is why it took him so long to invest in Apple. He got a call from Tim Cook, seeking advice, and then started to notice that nearly everyone he associated with (including all his grandchildren) used iPhones. [His railroad investment]