Maybe instead governments should pursue resource equalization. Some posts on a linked blog (https://freddiedeboer.substack.com/p/education-doesnt-work-2...) suggest that the differences in achievement between different demographic groups can be due to environmental differences. Unequal "head starts" due to economic circumstances are an obvious one. It may be that the best way to "pursue excellence" has nothing to do with education; it may have to do with taking money away from very wealthy people and giving it to less wealthy people.
I don’t want to be uncharitable, but is it a fair interpretation to say you’re advocating that we stop prioritizing improving outcomes through hard work and education and instead disincentivize financial success?
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I don't think your point that root cause is lack of initial resources contradicts the article's view on the benefits of pursuing excellence in education over uniformity. It is plausible that more uniform starting conditions and pursuit of excellence can coexist.