Now that I'm working in a very large code base with many engineers (Stripe), I have a new understanding of where type-checking is actually important: documentat

Now that I'm working in a very large code base with many engineers (Stripe), I have a new understanding of where type-checking is actually important: documentation. Yeah you can go in circles for an eternity about which is better and which is worse. I try to stay away from such arguments because they aren't productive. I do now argue though that as an engineering team and code base gets bigger, you will need static typing to be able to continue to grow at a sustainable pace. Static typing provides a very strong safety net letting people make good, safe changes in code they may not be intimately familiar with. If you have a small code base and/or small team, then static typing becomes much more of a personal preference.