About four weeks ago the Fall 2023 American Chemical Society meeting (#ACSFall2023). I have attended a few ACS meetings in person and even organized a symposium at the 2010 ACS meeting in Boston. This time too, I did not participate in person, tho visiting San Francisco again would have been nice. I gave two presentations (slides doi:10.5281/zenodo.8255394), but have not uploaded my slides of the first presentation to Zenodo yet.