# Christoph Adami > **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:** Artificial Life / Information Theory **Doc Type:** Canonical Wiki Node **Maturity:** Developed ## Definition Christoph Adami is a physicist and computational biologist who co-developed Avida and studies biological information and digital evolution. ## Nexus Context His work uses self-replicating computational populations to test general principles of mutation, selection, complexity and origins. ## Evidence Boundary Adami argues for information-centered accounts of life, while NASA’s account also records scientific skepticism about how directly virtual rules map to prebiotic chemistry. ## Relationships [[wiki/Avida|Avida]], [[wiki/C. Titus Brown|C. Titus Brown]], [[wiki/Charles Ofria|Charles Ofria]], [[wiki/Information Inheritance|Information Inheritance]] ## Sources / Provenance - NASA Astrobiology, “Computing the Origin of Life”; Adami, _Introduction to Artificial Life_.