Point is, there are all kinds and always have been, but most of the big contributors are essentially done by age 30 and then they become humdrum establishment fit to manage the accounts.
I suspect the older scientists on the forum might have an opinion as to whether or not they were done by age 30.
It can be abductively proved. Maybe somebody should take the trouble to do so as a graduate thesis.
A declarative statement (such as above) which relies on an unknown future is a statement of faith per se.
Most everybody gets the anthropic principle backwards, and of course it doesn't actually do anything useful backwards.