First, Whitehead sees both human experiences and the quanta of energy discerned through the analysis of atoms as instances of one and the same metaphysical type. Both are events or occurrences. Whitehead calls them "actual occasions." There are great differences between them, but both exemplify a common basic structure.
Second, this common basic structure is that of the many becoming one. It is a process of concrescence, that is, a process in which a new concrete actuality emerges from the diverse actual occasions that make up its world. But stating matters in this abstract way will not help you much to understand this quite radical point.
Let us think instead about how a moment of human experience comes into being. It grows in large part out of antecedent experiences. For example, as one listens to the last note in a phrase of music, the hearing of the preceding notes still reverberates. Otherwise, one would not hear the phrase at all. That means that the earlier experiences are still present in the later one. They comprise much of the content of that later experience. But, of course, they don't exhaust it. There is a new note sounding in the new experience. That means that mediated through the air and through the nervous system, events in the external world, perhaps someone playing a piano in the room, also become part of the new experience.
Although these may be the dominant parts of the world of the new occasion of experience, they do not exhaust it. Usually there are visual and tactile elements in the experience as well. There are memories of earlier events and anticipations of future ones. The condition of the liver and the kidneys has its effect on the experience as well. And, through these and other aspects of the immediate environment, more remote influences are also at work. Thus the whole world flows into the present, to a large extent making it what it is.
What is most important to grasp here is that there is not first an occasion of experience that then relates to its past. Instead, the occasion only comes into being as these past events inform it. The new event includes the past events, and it has no existence at all apart from this inclusion.
Of course, not every feature of all those past events is included. On the contrary, most of what has happened in the past is lost. Even when we are dealing with the immediately preceding moment, we realize that what is still alive now is less than its totality. With respect to more remote events, most of the richness is lost.
The activity of concrescence is not simply the inclusion of aspects of the past. There is also supplementation. In our example of listening to the final note in a musical phrase, there is not simply the numerical adding of the notes to make up the phrase. The moment in which the final note is heard is one in which the phrase as a whole attains a unity and completeness that was not present in any of the antecedent moments or in the final note taken by itself. Each occasion of experience not only receives from the past. It also interprets the past and evaluates the past. It relates elements of the past to one another in creative ways. In this process there is a transcending of the past and a determination of just how that past will be integrated and transmitted to the future. Whitehead calls this a decision. Each occasion of human experience makes a decision about itself in view of the past that it includes and the future that it anticipates.
This is an example of how the many become one. I have said that every actual occasion, including quanta of energy, are also examples of many becoming one. Obviously they are not listening to music. But they are also ways in which their worlds express themselves creatively in new happenings. The formal pattern is the same, although the qualitative character is extremely different. This means that even a quantum of energy is, for Whitehead, an occasion of experience. That is, it is a way in which the world is actively appropriated at a particular locus in space time. Of course, this does not mean that quanta have sense experience or consciousness, but even in human beings, these are not fundamental. One is never conscious of more than a tiny part of the whole of one's experience.
John B. Cobb, Jr., Whitehead and Anthropology









