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I wish there was a corpus of essays being written. One big benefit of the Polymath Project (https://en.wikipedia.org/wiki/Polymath_Project … ) is that it creates a corpus of genuine mathematical work - so beginning mathematicians get to see how top mathematicians work, make mistakes, etc.
Ditto open source software, though existing interface patterns make it harder to see project evolution than is the case for the Polymath Project.
