RailsConf 2022 - Functional Programming in Plain Terms by Eric Weinstein - YouTube

Have you ever wanted to know what a monad is? How about a functor? What about algebraic data types and parametric polymorphism? If you've been interested in these ideas but scared off by the language, you're not alone: for an approach that champions composing simple pieces, functional programming is full of complex jargon. In this talk, we'll cover these topics from a Ruby and Rails perspective, composing small ideas in everyday language. Before we're through, you'll have a rich new set of FP ideas to apply to your projects—and you'll finally learn what a monad is (hint: it's not a burrito).