Once again: the idea that computer science is unique among virtually all the professions in that performance at the median level of competence requires, like a concert violinist, exposure at the earliest possible age. This despite the fact that most of what programmers do is simply plumbing and diagnostics.

> performance at the median level of competence requires [...] exposure at the earliest possible age.

I never claimed that, though. I think my actual claims were pretty mundane:

1. Children who play with computers have an advantage when, later in life, they're learning programming.

2. Young girls, in many places, are not encouraged to play with computers the way that young boys are.