Flexner's critique: plant corn, not dead sticks
The guest cited Abraham Flexner's argument against mental discipline, framing useless study as planting 'dead sticks' when one could plant 'corn' - useful knowledge - and get the same discipline plus the corn.
Keep reading this one
You've read the thesis and who argued it. A free account opens the argument, what validates it, the risks the show raised, and the moment in the episode where it was said — 3 ideas in full a day, no card.