We know about those things and they don’t work the way you have laid out. For example spaced repetition is ideal for memorizing words, but less useful for working through a math problem or creative writing (relatively speaking.)

MOOCs were something I personally hoped were the solution to scaling education. However it didn’t work out, with courses having single digit completion rates.

This is for free, high quality, immaculate pedigree, learning material available at any time and any place.

Years of additional research had to be done to figure out how to raise completion rates, which creates more complexity on systems and delivery.

Unfortunately, that improvement is now moot, because LLMs obviate the friction and effort.

The point of doing a homework exercise is to provide learning friction for students.

LLMs obviate friction.

I would add Bloom’s 2 sigma problem to the mix.