EDGE Question 2008: What have you changed your mind about? [1]

I've been traveling in Central America for the past few weeks, so I'm late on blogging a number of things -- including this. Each year, EDGE.org's John Brockman asks a new question, and a bunch of tech/sci/internet folks reply. This year's question: What have you changed your mind about?

Science is based on evidence. What happens when the data change? How have scientific findings or arguments changed your mind?

I was one of the 165 participants, and wrote about what I learned from Boing Boing's community experiments, under the guidance of our community manager Teresa Nielsen Hayden: Link to "Online Communities Rot Without Daily Tending By Human Hands."