John B’s blog post calls it:

. . . a pretty neat hour long introduction going over a lot of features that users new to the language might be interested in.

The video creator’s description:

This is an introductory tutorial for a stack-based (concatenative) programming language Factor. It covers some basic language constructs and a few features of the interactive development environment that is shipped with Factor.

I’ve re-shot my two prior recordings combining everything into a single video.