"Making Impossible States Impossible" by Richard Feldman

Richard Feldman's elm-conf talk on designing models so that bugs from impossible application states cannot occur, using Elm's compiler and types. It demonstrates techniques for making invalid states unrepresentable.

Why HN recommends it: HN repeatedly recommends it as a talk that changed how people model data, with ideas that apply well beyond Elm to any typed language.

“the talk is Elm lang focused, but the concepts still apply to other languages.” Read on HN ↗