Just a quick note to let you know about a couple new radio/podcast programs I’m on at the moment.

1. Radiolab. The merry band of Jad Abumrad, Robert Krulwich, and company have put out a new episode all about speed. They got in touch with me after reading a column I wrote about the speed of thought, and I took them on a journey through our not-exactly-light-speed nervous system. They also explore other aspects of speed, such as the agonizingly slow drip of pitch and the superfast world of high-speed stock trading. I’ve embedded the show here.

2. Point of Inquiry: At Science Online this weekend, I sat down for a wide-ranging conversation with Indre Viskontas. We