Meh, there's some truth there, but we all know it's more complicated than just "buy solar stock -> make lots of money". An industry can BOOM while perfectly rat

Meh, there's some truth there, but we all know it's more complicated than just "buy solar stock -> make lots of money". An industry can BOOM while perfectly rational investors lose a buttload of money because the particular companies/etfs they picked weren't the ones that benefited from the boom.