I can totally see an argument for that if you need gradual type coverage, which I guess is needed on large code bases. I have only worked on smallish ones of a

I can totally see an argument for that if you need gradual type coverage, which I guess is needed on large code bases. I have only worked on smallish ones of a few thousand lines of code, and it took maybe an hour to type everything, although most of it was really fun and exciting :) but in cases where that's not realistic, I could see using Flow to help transition.