# Planetary Boundaries > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] provides the evolutionary and computational context for this supporting concept. **Domain:** Earth Systems / Governance **Doc Type:** Supporting Canonical Node **Maturity:** Developed ## Definition Planetary boundaries is a framework for identifying Earth-system processes whose disruption can raise the risk of large-scale destabilization. ## Nexus Context The framework supplies a governance scale for biosphere and compute growth, while remaining a scientific risk framework rather than a precise moral allocation rule. ## Relationships [[wiki/Biosphere|Biosphere]], [[wiki/Ecological Limits|Ecological Limits]], [[wiki/Planetary Stewardship|Planetary Stewardship]], [[wiki/Environmental Justice|Environmental Justice]] ## Sources / Provenance - Developed from the cited research in the central article and the surrounding continuity, rights and evolutionary architecture.