Interesting conversation around complexity in code bases. I especially like the point about imagination getting out of control and getting us into speculation. This is indeed often a reason for unwarranted complexity. That's why you need to always keep the context in mind to make your choices. Also indeed fascinating to me is our ability to forget and reinvent something which was already there years ago. We really need more frameworks where we understand what's going on all the way through...

Excellent collection of surprising behaviors in Python. If stuck or wondering why something works in a surprising way to you, it's a good place to look.