Hi all, today we'll meet in K51 and hear from Ralph Silva from University of Geneva. We'll end at 16:45 in view of two other interesting events (in order of increasing abstraction): 1. the theory colloquium (today: Guido Burkard from Konstanz on "Electron spins interacting with electric fields", see http://www.theorycolloquium.phys.ethz.ch/), as well as 2. the inaugural lecture by Prof. Roy Wagner, whom you all recognize from our meetings, today at 17:15 in HG F30 (i.e. downtown). His talk is entitled "On mathematical thought"; see https://www.ethz.ch/de/news-und-veranstaltungen/veranstaltungen/details.html.... Best, -joe