Alvaro Cassinelli, Uruguayan citizen, like me, who studied in Paris and now is a professor in Tokyo in the Ishikawa-Oku lab, is giving a talk at UPF. I met Alvaro a few years ago at Siggraph and it was «love at first sight». Did I introduce Carson to Alvaro ? Or did I happen to be there when they met for the first time ? Anyways it happened at Siggraph.