you are correct; I do not work on safety-critical code. I have worked with a lot of legacy code where functions depend on and mutate global state, often in fair

you are correct; I do not work on safety-critical code. I have worked with a lot of legacy code where functions depend on and mutate global state, often in fairly subtle ways. as much as possible, I want to see exactly which globals are being read/written and in what order. from this perspective, the "whole function" doesn't fit on one screen, whether or not sub-functions are factored out, and the name of a function cannot possibly tell me all I need to know about it.