In May, 2010, I heard Edward Tufte speak at the Royal Geographical Society in London, with Intelligence2. I asked a question from the floor, which he generously answered in detail. We also spoke at length after the event.

I am still challenged by his encouragement work on "Forever Knowledge." After such a thought-provoking evening, I spent extra time on my notes from the event, cataloging major topics as well as archiving all tweets: