CONCEPT
Autopoiesis
Maturana and Varela's 1973 definition of the living: a network of processes that produces the very components which produce the network. The organizational signature that separates cells from flames, and builders from the machines they direct.
Autopoiesis — self-making — is the organizational logic Humberto Maturana identified as the defining feature of living systems. An autopoietic system's fundamental product is itself: the cell's metabolic processes generate the components (membrane, enzymes, nucleic acids) that make those processes possible. The circularity is not a description flaw but the phenomenon being described. Life, in Maturana's formulation, is a process that makes itself, and the boundary between living and non-living falls precisely here — between systems that produce themselves and systems that do not. Hurricanes self-organize but do not produce the components sustaining them. Crystals grow without metabolizing themselves. Only living systems close the loop entirely. Maturana insisted the concept remained in the molecular domain, resisting metaphorical extensions that diluted it.
In The You On AI Field Guide
The concept emerged from Maturana's decades of work on the operational closure of the nervous system. Starting from his 1959 paper on the frog's visual system, he built toward the recognition that organisms