FP and the arguments have evolved in the 25 years after this paper. Laziness by default was important because it forced language and library developers to inven

FP and the arguments have evolved in the 25 years after this paper. Laziness by default was important because it forced language and library developers to invent new purely functional constructs such as monads and functional reactive programming. Functional programming has won with lambdas in every language and even mainstream GUIs getting programmed with React.js, pure Flux architecture and Immutable-js.