Heat escapes across exposed boundaries. A compact, insulated shelter can retain warmth more easily than a sprawling one. In cold conditions, the body can reduce blood flow near the skin to protect its core.
Networks do not obey the same equation, but they can share a similar vulnerability: when every essential function depends on distant supply and uninterrupted flow, one broken trunk can darken the whole structure.
Imagine every neighborhood carrying a quiet survival layer beneath the main grid: a microgrid able to operate independently, a shared kitchen with backup energy, insulated rooms for collective warmth, local reserves, offline records, and people who know who cannot safely be left alone.
This would not replace the larger network. Scale can move energy, food, and knowledge farther than any hearth. The smaller layer would keep essential life running until connection returns. Redundancy would become relationship: one warm room, one charged radio, one remembered name keeping morning possible.
Build essential systems so they can contract without disappearing. During abundance, connect widely. During rupture, fold toward a dense core. Keep enough heat, power, care, and memory alive to reconnect.