Last week, I attended Google Zeitgeist and gave the “Series of Tubes” Ignite talk about the history of pneumatic tubes. The event was mindbogglingly stellar. You’ve probably seen some version of this by now, but here’s the latest. (On the Zeitgeist Minds site, they list Desmond Tutu’s talk from a previous year as a related video. Not sure how that works, but whoa.) Many thanks to Brady Forrest and Tim O’Reilly for extending the invitation.