HackerTube / Video
Factor: an extensible interactive language
Google TechTalks

A 2008 Google Tech Talk in which Slava Pestov introduces Factor, a concatenative language influenced by Forth, Lisp and Smalltalk. It covers the interactive environment, metaprogramming, and the language's modern high-level features and libraries.
HN recommends it as the best introduction to Factor and concatenative programming, with commenters saying it impressed them with the engineering.
8 Hacker News mentions · 2014–2025