Throughout quite a long period of time, Chisholm would have maintained that the imagined ontological scheme violates Occam’s Razor, since it affirms the existence of more fundamental kinds of things than we really need. More specifically, he would have thought that he could accomplish considerable pruning by replacing three of these proposed categories with a single new category — “states of affairs”. He thought he could explain all talk of propositions (category 5) by appeal to states of affairs of a certain sort. Similarly, he thought he could explain all talk of concrete events (category 6) by appeal to states of affairs of a different sort. Facts (category 7) would turn out to be nothing more than true propositions.