I think the point is a far more cynical one. If your goal is to make money, why are you not making money? Either it's not your goal (and you shouldn't be an in

I think the point is a far more cynical one. If your goal is to make money, why are you not making money? Either it's not your goal (and you shouldn't be an investor) or you're too dumb to be successful at it (and you shouldn't be an investor). It's a litmus test not an intelligence test.