Funding provided by the Lorentz Center, the Royal Netherlands Academy of Arts and Sciences (KNAW), the Materials Innovation Institute (M2i, secured by L. Nicola), the Groningen University Fund (GUF) and Nanovea for a workshop Lorentz Center@Oort workshop held in Leiden, the Netherlands (30 Jan to 3 Feb 2017), co-organized with M. Ciavarella, A. Fasolino, L. Nicola, J. Scheibert and V.A. Yastrebov with the participation of some 60 leading European tribologists