Those practically engaged in the world cannot found their conception of it on the philosophical premise that one thing just happens after another. 1 Yet no absurdity is felt by the thinkers who propose this. One would say that since they believe an almost infinite number of types of event could be associated with any particular one, the regularity in the world's behaviour indicates the operation of some Agency; but of course they do not allow this. There must be a mistake somewhere in the assumptions of their arguments, leading as they do to so unsubstantiated a conclusion, and their fallaciousness must be exposed now.