Of course that's just the first (coarse) filter. Once you've selected for those who actually want to solve the problem (and not just "be" the one who solves it)

Of course that's just the first (coarse) filter. Once you've selected for those who actually want to solve the problem (and not just "be" the one who solves it) there is still the the incredibly fine filter of who actually has the ability- that confluence of nature/nurture that is itself such a subject of debate.