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The creator of Elm interweaves examples from Elm’s development and theory from a media studies classic, using each to explain the other — you’ll learn about both.

My own favourite part starts at 05:23. Evan first explains how in the sentence “Elm has a sound type system with full type inference”, the actual content, the useful content, is very low, and then he shows how to improve it. This notion seems especially useful: “this [is a] factually correct statement that is not communicating my emotional experience.”