202402201204 Resilient, self-organizing systems will generate hierarchies

Often 202402201202 Resilient systems that are also 202402201203 Self-organizing systems will produce hierarchies in the process of self-modifying and self-organizing.¹ There are many reasons that hierarchies can be desirable — notably 202402241722 Hierarchies enable iterative progress and cohesion (202204272309 Modules should be loosely coupled, 202204272308 Modules should be highly cohesive).

Outside of the desirable traits of cohesion in man-made systems, biological or emergent systems that are modularly cohesive allow for less understanding and dependence on other parts. They are more resilient because there are parts that can take the place of other parts as long as they provide the same "interface" or function of the replaced part. For example, the human body is remarkably adaptable and there are parts of the brain that can completely rewire themselves to function as other damaged parts if needed.