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The hardest thing about functional programming is learning how to think like a functional programmer. Simple questions can lead to very general answers, but it's not always obvious how to get from here to there.
In this talk, you will start with a simple design problem and follow the types, think about composition, abstract away what's irrelevant, and arrive at a solution to many problems. With some luck you'll also gain a bit of intuition about how functional programmers think.
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Rob writes pure functional astronomy software for the Gemini Observatory, and is a contributor to many Typelevel projects (and others) that promote functional programming in Scala. He enjoys complaining on Twitter and elsewhere as @tpolecat. Rob lives in Portland with his wife and daughter, who are very good sports.