Yes! - read the paper. Or if you are too "busy" on HN, at least skip to sections I.3. THE SERIES OF APPROXIMATIONS TO ENGLISH and I.4. GRAPHICAL REPRESENTATION OF A MARKOFF PROCESS.
See also the Usenet trolling program that indirectly inspired the Go example: http://en.wikipedia.org/wiki/Mark_V_Shaney
http://cm.bell-labs.com/cm/ms/what/shannonday/shannon1948.pd...