I'm not going to argue splitting hairs about what ADHD is. Many of the most famous CEOs and startup founders have properly diagnosed ADHD and have been very vocal about it. This is also often true of any business owner you've met in real life. I didn't think this statement would get any pushback since not too long ago the front page of HN was touting this as a "superpower".

The high-functioning expression of impulsivity is impatience with processes and insistence on maximum efficiency. I guess lately this is seen as negative because of the zeitgeist around AI?

Tao is talking about this impatience.

> Prematurely putting such games to an end by immediately providing the nominal goal --- for instance, providing these children with a brief lecture on infinity and the unbounded nature of the natural numbers --- defeats the entire "purpose" of such curiosity-driven play

It's not that they don't remember playing as children, but that they resent the time spent on it as "wasteful". They do mean well by trying to squash play time, but yes of course that's harmful and naive.