1) Analytic philosophy 
In contemporary analytic philosophy, actualism is a position on the ontological status of possible worlds that holds that everything that exists (i.e., everything there is) is actual. Another phrasing of the thesis is that the domain of unrestricted quantification ranges over all and only actual existents. The denial of actualism is possibilism, ...
see uniformitarianism.
the doctrine that all reality is animate or in motion.