I went to the BYU Ruby User's Group meeting tonight. Devlin Daley (one of my grad students) gave a demonstration of Rails by building a movie database application. He did a good job. There were about a dozen people there. Again, I was impressed by the power of convention in contrast to configuration. We don't, in general, do a good enough job of thinking out defaults for our programs so that they work without configuration for what most people want to do.