> Any for-profit initiative (ed-tech) will not be incentivized to improve learning outcomes. There's no money in it.

I think a point to keep in mind is that even if some team cracked the ed-tech challenge and created a software that was wildly effective at getting students to learn, it would actually still be very difficult to get public schools to actually adopt it, unless they have some incentives like it being heavily subsidized, or free. And even then, it might not be free forever. That's part of the reason why ed-tech (even when it is proven to work) doesn't really make money.