"/more programmers/", as long as the new set has a different and "better" distribution ratio among its members than exists presently. Just reinforces my point. As to "wider variety of thinking" this is immeasurable and is sufficiently vague so you can take it to mean anything you want it to mean.

Fwiw, I am not saying Martin is wrong - he is a smart guy and he is a probably right. I am just saying his argument uses subtle tricks of rhetoric to, essentially, circle back to his assumptions.