[brudgers]

Hacker News, was written in a Lisp. Lisp was developed as a language for more closely describing programs in the manner Lambda Calculus describes algorithms in contrast to languages for describing programs more closely to the manner in which Turing Machines describe algorithms.

So as recently as now, it might be argued that the Lambda Calculus has helped waste time reading this here comment. Whether that's something it's done for anyone or undone is a matter of perspective.