[zeugmasyllepsis]

I don't disagree that static type checkers and analysis software can be useful for catching many kinds of errors. In fact, at the end of my comment I emphasize exactly their strength: in automatically detecting when and where clients need to make changes. My intent in making the comment was to highlight that static analysis is only one part of a larger solution to the problem of keeping call sites in sync with the code they depend on, and to discuss other techniques that don't rely on static analysis. I think articles and comments online focus too much on the debate between static and dynamic typing, instead of the engineering principles that apply to both camps, which can help mitigate the risks associated with change.