Claim. The line below which the first ancestors could not fulfill their portion of responsibility became the origin of Satan’s sovereignty — evil rule starts exactly where responsibility-fulfillment failed.
Elaboration. SMM gives a topological account: good and evil sovereignty are demarcated by the responsibility-fulfillment line. “The place where the human ancestors could not fulfill their portion of responsibility became the realm of Satan’s dominion… The evil sovereignty begins below the line of fulfillment of the portion of responsibility while the good sovereignty begins above it. What initiated the evil sovereignty? It began with fallen, self-centered love” (2.2. The consequences of failing to fulfill our portion of responsibility, 139-231, 1986.1.31). The failure also generates a parental displacement: “What emerged following the invasion of the realm of human responsibility? Another parent appeared and that parent is Satan” (ibid, 137-247, 1986.1.3). The failure cascades: “Adam and Eve became the root and all the descendants became the trunk, branches and leaves, and as a consequence all human beings were unable to fulfill their responsibility” (ibid, 87-120, 1976.5.23). Sovereignty, parentage, and responsibility collapse together at the same boundary.
See also. fall, fallen-nature