Geoffrey Grosenbach invited me to appear on the Ruby on Rails podcast, and the interview was posted yesterday. He heard me speak on Metaprogramming Ruby at FOSCON in August, and wasn’t interested at all … but eventually decided he should be interested in the topic, so we spent a little while talking about metaprogramming, why it’s an important topic for Ruby programmers to understand, and how to get started. I think it turned out really well—check it out!