It’s functions, pure functions! Pure functions and their values, PURE FUNCTIONS FOREVER AND FOREVER AND FOREVER A HUNDRED YEARS monad... some... things... Me and monads runnin' around and...applicative functor time... a- all day long forever... All a - a hundred days applicatives and functors! Forever a hundred times.... OVER and over monad transformers... adventures dot com... W W W dot at lambda calculus and category theory dot com w..w..w... function composition adventures... Ah- hundred years… Every minute referential… transparency dot com.... w w w a hundred times... composition dot com...