There are consequences to modeling a communication system as a multiheaded
multi-footed monster. Such a model claims that hierarchies of processes
“meet” and that there is a common meeting point that is perhaps critical to the
effective operation of the communication system. In addition, meeting points that
bracket a set of processes above and below suggests that each of these processes
may be treated as a single type of functional unit. The existence of these units
has a natural support and the study of these units may be more profitable than the
study of units with lesser degrees of support. Each unit may evolve, increasing
the rate of survival and reproduction of those creatures with this function.