Today we say farewell to Jun-Qian Jiang, who after an extremely successful 6 months as a long-term visiting PhD student, is returning to China (below is a picture from our farewell pizza dinner at Doc: from left to right we have Simony Santos da Costa, Marco Calzà, Guan-Wen Yuan, Jun-Qian Jiang, and yours sincerely). Jun-Qian’s time here was extremely productive, with 3 very interesting papers, many more in the making, and several key contributions to my group’s activities, for which his arrival was extremely important. Thanks a lot Jun-Qian for everything you taught me, and have a nice trip back to China!