Ha ha, I like it! Reminded me of when I was writing Organizational Culture (Part VI): Sociology:

An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradually die out, and that the growing generation is familiarized with the ideas from the beginning: another instance of the fact that the future lies with the youth.

-- Planck's Principle

A person who has not made his great contribution to science before the age of thirty will never do so

-- Albert Einstein

Designer	Language	Age
John Backus	FORTRAN	30
Dennis Ritchie	C	30
Bjarne Stroustrup	C++	30
Yukihiro Matsumoto	Ruby	30
John McCarthy	LISP	32
Brendan Eich	Javascript	33
Larry Wall	Perl	33
Guido van Rossum	Python	34
James Gosling	Java	39
Anders Hejlsberg	C#	39

It will be interesting to see if more breakthroughs are made by older folks if life expectancy improves further, especially if it dramatically improves via genetic engineering ... though I won't be around to see it. :)

Update: As pointed out to me in the Chatterbox, note that many of the ten computer language designers in the table above had already made important contributions in their twenties. Anders Hejlsberg, for example, wrote the core of the Turbo Pascal compiler in his early twenties, while still a student. Dennis Ritchie was a pioneer developer of the Multics and Unix operating systems. Please feel free to point out earlier contributions made by others in the table above.