1. Possibilism, possibilist or possibilistic may refer to: Possibilism (geography), a theory of cultural geography Possibilism (politics), an 1880s faction of the Federation of the Socialist Workers of France Possibilism (philosophy), the metaphysical belief that possible things exist (e.g. modal realism). Possibility theory, a framework for reasoning with uncertainty in artificial intelligence Possibilism and Possibilists, a somewhat derogatory term for Reformist Socialism and Social democracy Libertarian possibilism, an anarchist current that advocates participation in political institutions == See also == Possibilianism from wikipedia.org