The paper starts by outlining a general perspective in social psychology. It may turnout that social constructivism, the perspective outlined in the early sixties is one of the major contributions of European social psychology to social sciences in general. Whatever its fate, some particular points are made: a)physics is not the only model we have to follow b) the existing ways of explanation can and must be upgraded c) more complex theories are required d) changes in methodological and statistical criteria are expected in order to deal with new and complex phenomena. Nevertheless the main problem today is description and not explanation. That is the discovery and observation of a wider range of new social phenomena. How successful we will be in this endeavour decides if social psychology becomes a major science or not.