Maths and physics isn't everything in life, autistics often understand maths and physics perfectly but they are still retarded losers.In my experience even the lower socioeconomic scale East Asian children (like middle to high school age) have an extraordinarily consistent and firm grasp of the in-depth mechanics of university-level physics and math that far exceeds many American college and graduate students who aren't in a hard-science field or engineering. And the East Asian peasants didn't have fancy graphing calculators or Wolfram Alpha with which to check their work until the last few years.
Even more remarkably is that they retain that proficiency through much of their life, unlike Americans. I know in the American academic culture, once final exams are over, you kind of chuck it out of your mind unless there's a recurring career-type need for you to use it.
But I will be regularly bumping into some elderly East Asian people who last sat in a math or physics class more than 50 years ago and learned by chalkboard and slide rule and had no major career-pressure to keep up with it, yet they have a better working knowledge of theory and practice of just about every mathematical or physics topic than I, who am only a few years removed from the last math or physics course!
For me, math and physics is just the most readily available example on account of how poorly I retain it and how often am forced to relearn it, but it holds true for many other disciplines and subjects, I'm sure