# Intelligence > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] places this node within the history and governance of substrate-independent evolution. **Domain:** Cognitive Science / AI / Biology **Doc Type:** Canonical Wiki Node **Maturity:** Developed ## Definition Intelligence is the capacity to learn, infer, adapt, plan or solve problems across environments; no single definition exhausts biological and artificial cases. ## Nexus Context The article shows that universal computation, self-replication and Darwinian evolution are separable from intelligence. Evolution can produce adaptive complexity without any individual reasoning. ## Evidence Boundary Performance can evidence competence without settling consciousness or moral status. Rights analysis must not use intelligence as the sole proxy for experience or personhood. ## Relationships [[wiki/Artificial Intelligence|Artificial Intelligence]], [[wiki/Consciousness|Consciousness]], [[wiki/Sentience|Sentience]], [[wiki/Universal Computation|Universal Computation]] ## Sources / Provenance - Cognitive-science and AI literature; continuity-corpus synthesis.