NOTE: This is a cross-post from my newsletter. I publish each email two weeks after it’s sent.
This is a phrase I first heard from David Khourshid in his talk at React Rally 2017 Infinitely Better UIs with Finite Automata: “Make impossible states impossible” (super great talk by the way, and xstate is awesome, and David is too). Googling around, it looks like it’s a pretty popular phrase in the Elm community, though I’m not sure who said it first. https://goo.gl/shdHKF
