Barcelona is renowned for many things (Cava being top of my personal list), but its many salsa bars are surely among the most memorable. The following photograph was taken outside such a place, a few hours after the impressive conference meal. Don't ask what time it was: it was late. From left to right, we have Michael Schroeder, Joerg Mueller, and me.

This one, taken shortly after, shows (left to right), me, Joerg Mueller, Michael Schroeder, Nina from Siemens, Angela Caicedo, and (someone whose name I have forgotten).