JWST has a finite lifetime

I spent the day at STScI, giving a talk about hierarchical inference, hosted by Lou Strolger (STScI), and also chatting with various. There is so much going on at STScI and JHU; it was a busy day! One theme of my conversations was calibration (of course); CampHogg and STScI are aligned in wanting to make calibration simultaneously more precise and less time-consuming (as in less consuming of observing time). Another theme was the short life of JWST; as a non-serviceable facility with expendables, it has a finite lifetime. This puts pressure not just on calibration, but also on every possible science program. We have to use this facility efficiently. That's a challenge to the whole community, but especially the many teams at STScI.