In July 2022, I gave a talk at the COSPAR (Committee on Space Research) meeting in Athens, Greece. This was my first talk (of any kind) in three years. I never took to the online seminars.
In August 2016, I gave a seminar at the High Altitude Observatory in Boulder, Colorado. In a treat as rare as a sighting of the Yeti, I was captured on film.
David H. Brooks 