I used to feel that way — and in some situations I still do, like for a short script that I think won’t change much over time. But for a lot of situations I realized that I had so many things to keep track of myself. If there was an easy way for me to be looking back over my shoulder less, like with static typing, I was all for it.

Static typing lets me front-load the effort of making sure many different buggy cases won’t happen. The alternative is for me to think really hard proving to myself that those cases won’t happen each time I come back to the code in the future to add a feature or make a change.