The “problem” is exactly as you’ve framed it: individual 1-1 tutoring unambiguously improves education outcomes by a significant (2 StDev’s in Blooms study) vs any other understood method but delivering this universally is (was?) infeasible.

Bloom looked at other methods used in concert to achieve similar improvements to “solve” the problem that could be delivered at scale.

LLMs may provide a new path to the 2-Sigma improvements without the same delivery problems.