In the afternoon I dropped by Muna's SciCoder workshop today to give a short spiel about testing, making my pitch that scientific results produce the best end-to-end tests of scientific software. In the morning I worked out a bit more about my hierarchical Bayes methods for exoplanet studies. I am finding the math to be non-trivial, although in the end I want—and expect to have—something simple to explain and simple to execute. I think I will pitch it to people who have, to start, a sampling of exoplanet parameters for each of a set of exoplanets. That is, the pitch will be to Bayesians.