Near-sun service zones generate specialist branches faster than most other environments in the Koblie stack.
That pattern is not mysterious. Near-sun work punishes broad capability if broad capability comes at the cost of thermal discipline, route precision, or exposure tolerance. In those environments, a narrow branch that does one family of tasks extremely well can be more valuable than a flexible one that carries too many compromises.
The result is a social structure that looks different from the Moon or mixed civic settlements. Near-sun populations often evolve through sharp functional lineages first and broader civic integration second.