Jonathan Weinberger - Universes in simplicial homotopy type theory

See Emily Riehl's Could ∞-category theory be taught to undergraduates?

I really think there's something wrong if people get funding for developing things that cannot be learned by others without them spending three years in full-time study. That's how you end up with nuclear weapons and lacking the know-how to provide food and shelter. See The Only People Who Really Look After US National Security Interests. 

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