# Computational Substrate **Entity class:** Computing concept **Domain:** Artificial intelligence / Computer architecture **Maturity:** Developed ## Definition A computational substrate is the physical or virtual medium whose state transitions implement computation, including silicon, photonics, biological systems, or distributed machines. ## Mechanism and significance Intelligence is constrained by the substrate's energy, memory, communication, fabrication, reliability, and ability to support the required algorithms. ## 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:** [[One-Nanometer Lithography]] · [[Two-Nanometer Lithography]] · [[AI-Designed Semiconductor Supply Chain]] · [[Free-Electron-Laser Lithography]] ## 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. ## Simple Reminders, Quotations, and Thoughts > Intelligence cannot modify its own computational substrate by blueprint alone. Physical self-improvement requires new materials, fabrication systems, supply chains, and access to machines as intricate as ASML lithography equipment. Even a perfect design must still be manufactured in the real world. > **— Adapted from Richard Socher**, *MOONSHOTS Live, October 2026* [[reminders/AI Infrastructure/Superintelligence Still Has to Build Its Supply Chain by Richard Socher|Superintelligence Still Has to Build Its Supply Chain by Richard Socher]]