The Tau Manifesto video

In a nutshell: http://vihart.com/blog/pi-is-still-wrong/

This video is from a talk I gave on Tau Day last year. I released it today in honor of Half Tau Day.

The Tau Manifesto has also been considerably revised. See especially the updated Section 4 (http://tauday.com/tau-manifesto#sec:conflict_and_resistance).