DNA and RNA (and Birdnow).
PZ Myers has, over at Pharyngula, taken issue with a remarkably ignorant essay written by Timothy Birdnow. Birdnow has responded with a new blog, PZ has responded to part of the response, and so the fun begins. At the risk of being seen as just piling on to an easy target, there are a couple of important points that I don’t think have been raised yet. The first has to do with exactly what constitutes the “building blocks of life”; the second has to do with basic competence.