The Typechecker Makes You Go Slower

The dynamic typing world can learn a lot from the typechecker. It forces you to be simpler and more consistent. The idea that it makes you go slower is true when you're learning, because you make a lot of mistakes. But eventually it gets on your side, or you get it on your side,. You change internally to understand it better, and you can start using it. Not going to be faster for the things it's bad at but it really helps.