Every now and then we science writers come face to face with how much science there is to write about–and how limited our powers to write about it are. This week, I’m on the road to report a magazine feature–a week that just so happens to be the one that a team of scientists chose to publish dozens of papers at once on the nature of the human genome. The purpose of the project, called ENCODE, is to systematically measure the function of every bit of the human genome. ENCODE has been going on for quite some time. In 2008, I wrote about the first chunk of results from ENCODE in the New York Times, and I followed up