The Tau Manifesto Launched on Hacker News on Tau Day, 2010

Amusingly, the domain in which I used to work (physically-based rendering) primarily computes hemispherical integrals that would all conveniently be tau (the solid angle of a hemisphere). The only downside is that tau is almost always used for optical depth in scattering / Lambert-Beer’s law, but as that’s a distance tau always seemed a weird choice anyway.

mhartl: feels like you should organize Wikipedia editing parties to make alternate equations in terms of tau. https://en.m.wikipedia.org/wiki/Solid_angle would be an easy target :).

For the latest tau updates, see this year’s State of the Tau newsletter:

https://tauday.com/state-of-the-tau

Once again I suffer from time-zone-ism, where someone on the internet announces it on "28 June", but it's actually already 29 June and it's too late for me to fully enjoy Tau Day.

Mmm, time for some pie!