The more Haskell I write, the more I work with FP power users, the more radical I'm getting around the idea that *every* programmer should have a decent C knowledge.How can you leverage the full power of free software if you are not able to understand and modify the underlying abstractions you're building on top of?Yes, the language is full of footguns security-wise. Yes, writing anything is it is terribly verbose. But like it or not, C is still the lingua franca of system programming. You *have* to master it to some extent.