General discussion by Yamazaki, I, Rice, SA, Haas, Y, Goodall, D, Rettschnick, R, Balint-Kurti, G, Kidd, I, Stephenson, T, Naaman, R, Zewail, A, Heller, E, De Hemptinne, X, Hancock, G, MacRobert, A, McAlpine, R, Evans, D, Von Puttkamer, K, Dübal, H, Quack, M, Baer, T, Wittig, C, Cohen, S, Rynefors, K, Davidsson, J, Brumer, P