An OK introduction to Forth. But this doesn't seem right:

There are two types of programming language that cover 99.44% (the Chambers Constant) of programming language design.

1. Languages designed and promulgated primarily by academics like Prolog, Lisp, Haskell, Pascal, etc.

2. Languages designed and promulgated primarily by corporate entities (factoring government as a corporate entity) such as C, Java, Erlang, Ada, etc.

Where does that leave languages like Python, Perl, Ruby?