>As a rule of thumb ... I've heard variations on that a lot, but have not found it to be true at all. I've tried 3 times over the years as I got better at pro

>As a rule of thumb ... I've heard variations on that a lot, but have not found it to be true at all. I've tried 3 times over the years as I got better at programming to write a server for a little mmorpg in OO languages. Each time it turned into a buggy, unmaintainable mess. On my fourth try I was using ocaml because I thought a better type system could help. Again the OO version I wrote initially was buggy and terrible. But being ocaml, I could rewrite bits and pieces in a functional style and improve it gradually. I ended up with no OO code at all, and very little imperative code (which was only for performance reasons). This is the very definition of "you have to model the relationship and interaction between things (objects)", but OOP was terrible and FP is great.