# Dyson Sphere **Entity class:** Astroengineering concept **Domain:** Astronomy / Long-term futures **Maturity:** Developed ## Definition A Dyson sphere is a hypothetical system of structures built around a star to capture a substantial fraction of its energy output. ## Mechanism and significance The realistic engineering interpretation is usually a distributed swarm rather than a rigid shell, making the concept a measure of civilization-scale energy and manufacturing capacity. ## Relationships - **Research dossier:** [[research/ASI and RSI Timeline Research Moonshots|ASI and RSI Timeline Research Moonshots]] - **Ontology route:** [[ASI and RSI Timeline Ontology#Physical Intelligence and Scientific Infrastructure|Physical Intelligence and Scientific Infrastructure]] - **Primary fields:** [[Physical AI]] · [[AI Infrastructure]] · [[AI Superpower]] - **Adjacent concepts:** [[AI-Assisted Fusion]] · [[Quantum Gravity]] · [[SpaceX]] ## Sources and provenance - [[research/ASI and RSI Timeline Research Moonshots|ASI and RSI Timeline Research Moonshots]] — immediate source for this node's role in the broadcast research map. ## Evidence boundary The research dossier establishes why this entity or concept belongs in the Moonshots ontology. Time-sensitive organizational, product, policy, and performance claims should be checked against the linked primary source or a current authoritative source before reuse as settled fact.