Also, ‘years’ tend to be a lot more hours for kids, and each hour yields more learning due to neuroplasticity. I learned so much faster at 15 than I do at 35. I know more now, which often more than makes up for slower learning, but I can’t learn difficult novel subjects in depth as fast as I once did.

I’m glad I learned OS in depth during high school via Gentoo linux. And engineering/physics/math in college. It’s very easy to assimilate any new knowledge which can be understood through those areas of first principles.

But learning more advanced math is quite a task now.

Also don't get hung up on "folded". He hasn't innovated a design (it was invented by a Japanese astrophysicist, Miura-Ori), merely measured sustainable load across different designs.

Rather than age, isn't this more a trait of autism than anything else?