During my career so far, I’ve given around 800 talks on 150 subjects in 31 US states and 32 countries on 6 continents.

If an average audience is 30, it would seem around 25000 people have seen me speak, or maybe 10000 if you weed out repeats.  Such numbers are huge by an ordinary standard, but infinitesimal on the scale of politicians or celebrities.

[12 February 2019]