All humans don't think alike though do they? I'd sum up my unintentional journey from OO to FP as the realization that I'm not smart enough to do non-FP. Not sa

All humans don't think alike though do they? I'd sum up my unintentional journey from OO to FP as the realization that I'm not smart enough to do non-FP. Not saying OO is "wrong", but that maybe it maps better to your mental model than it does mine. I can easily jump into a more functional oriented codebase and reason about functions with clear input/output and no side-effects. The realtime REPL compiler in my brain can track the private state of functions. And while not all functions can be 'pure', most can be. With OO? Forget about it. Side-effects everywhere, that often aren't obvious when you are new to a codebase. And when I say "new" I mean it as in "not currently very familiar with". Which includes code I had written myself - years ago - that I have to relearn.