That is exactly the point that I raised in the essay. Education is a really hard problem. I don't claim I know how to fix it, but while everyone seems to agree that everything is broken, we are heading in the wrong direction.
I wouldn't say education is that hard on any fundamental level. It is, however, quite heavily constrained by factors that have nothing to do with actual education.
Imagine someone told you to build a robot out of wood and brass and whatever you could dig out of the ground, as a one-man effort, in a workshop. You might come up with steampunk and completely impress "someone", but more likely you'd just fail utterly because "someone" has given you loads and loads of extraneous constraints that have nothing to do with "build a robot" and everything to do with "I've dropped you into the late 19th century".
