The movements of birds in clouds, insects in large groups, individual fungal organisms in species such as mushrooms, or of human beings, all individuals moving at similar speeds in similar ways, these can be explained. First, it may seem possible that each individual makes a decision similar to the rest, and that these decisions, viewed from our perspective, take the form of a unified act. But there is a problem with this in that almost all, and perhaps all, of these unified acts have results which are justifiable in themselves, and which must be being brought about purposefully, or at least knowingly, and, therefore, there must be a moving force behind them. Second, the nature of decisions which most individuals can make is influenced, or controlled, or probably even dictated in some cases, by the larger organism as a whole, or by those individuals among it who percieve in such a way that necessary objectives are known to many, or even to all, and by whom thoughts and decisions are tools employed to achieve an end. In line with this would be a number of phenomena which we can see evident in the world.
Human endeavor takes a course.
This has to be true because objectives consistent with needs of the global organism are routinely attained. And since, in this world, needs are not characteristically satisfied automatically, accident or coincidence cannot be the means. One man cannot be allowed to follow through on every thought he can possibly have, though he may make those thoughts possible. Due to contstraints in resources such as circumstance, money, energy, or time, the effectiveness of their emplimentaion by him would be reduced. Therefore others may act on them, who are situated more suitably for achieving them.