Many people talk about 10x engineers, but nobody talks about 10x education.
I'm still wondering why we don't have state-sponsored education material comparable to the videos made by 3blue1brown (youtuber).
Any welfare state should invest in people making good educational material. And that material should be availabile to everyone, for free.
When studying an hard topic, a good explanation is better than 1000 bad explanations.
For real, even economically, i think that would be a huge long-term investment, for the entire world.