pain(x) = Language upgrade pain after x years of development. That seems like a somewhat objective concept -- about which it is fairly hard to make guesses ...

pain(x) = Language upgrade pain after x years of development. That seems like a somewhat objective concept -- about which it is fairly hard to make guesses ... If I _had_ to guess though, because of the static type system and the process guiding swift's evolution, I would hazard that Swift 23 -> Swift 24 will be significantly easier than python 2 -> python 3 ...