My brain goblin is a big fan of performance. Recently I reviewed a teammate’s code. It was a small 100ish line PR and he calls the same function twice in a row with a tiny variation. My brain goblin went “you could consolidate these into one call”, “since it’s only one call you could inline it”.

A couple hours later when he came to ask me what I’m smoking I realised my proposed solution had more LoC and was more complex to read. If we needed better performance, step 1 should’ve been to offload this task to an API that wasn’t made with python.