I’d argue they’re more foundational. If some code could use a b-tree but the dev doesn’t know about them, they can’t do much damage — they’ll use a less optima

I’d argue they’re more foundational. If some code could use a b-tree but the dev doesn’t know about them, they can’t do much damage — they’ll use a less optimal tree. If some code needs a state machine but the dev doesn’t know about them, that code will have so many bugs.