Ran across a technical article about Yellowstone geology, especially how the caldera-hotspot has moved across the earth’s surface (from our point of view) over time. Here’s a WikiP image of it, and here’s a bit of a discussion of it….
All this seems a bit trivial, as I also have been thinking about Nancy and her partners, speed-making a movie over this weekend; technical name: challenge film-making…. It seems to me that a big part of the process is figuring how much you can arrange ahead of time—and doing it!, to leave time for the important parts that can’t be put off. Anyway, if her group’s film wins, it goes to Cannes for screening!