Social constructionism has more recently been rooted in "symbolic interactionism" and "phenomenology". With Berger and Luckmann's "The Social Construction of Reality" published in 1966, this concept found its hold. More than four decades later, much theory and research pledged itself to the basic tenet that people "make their social and cultural worlds at the same time these worlds make them." It is a viewpoint that uproots social processes "simultaneously playful and serious, by which reality is both revealed and concealed, created and destroyed by our activities." It provides a substitute to the "Western intellectual tradition" where the researcher "earnestly seeks certainty in a representation of reality by means of propositions."