I believe we already do this to some extent. There are government funded grants for all kinds of things. I guess you just want more of that? I think you have to be careful, because that starts to look like the government picking a lot of winners and losers in private industry. Ripe for misallocation of resources.
This is interesting to me though. Didn’t most people (at least in developed countries) take tests in school? Get grades? I would think if you did below average on those you kind of…should know that you’re in the bottom half?
I get that it’s possible to make changes after schooling, and grades are only somewhat reliable (in that they also rely on effort) but still.