# Spaceship Earth > **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:** Systems / Planetary Governance **Doc Type:** Supporting Canonical Node **Maturity:** Developed ## Definition Spaceship Earth is the framing of Earth as a materially bounded, interdependent life-support system whose inhabitants share finite resources and coupled consequences. ## Nexus Context The biosphere’s open-ended evolution still operates inside planetary energy and material constraints; digital ecologies likewise require resource accounting rather than fantasies of immaterial computation. ## Relationships [[wiki/Biosphere|Biosphere]], [[wiki/Systems Ecology|Systems Ecology]], [[wiki/Planetary Boundaries|Planetary Boundaries]], [[wiki/Resource Constraint|Resource Constraint]] ## Sources / Provenance - Developed from the cited research in the central article and the surrounding continuity, rights and evolutionary architecture. ## Simple Reminders, Quotations, and Thoughts > “We are so accustomed to watching the explosion of human growth and development that it is easy to imagine that this is normal. It is not. We are the first generation in history that has watched the human population double in our own lifetime, and no future generation is likely to see it again. All of those blights of growth that we have come to accept—crowded cites, jammed roads, expanding suburbs, fish-depleted oceans, and tree-stripped forests—are all symptoms of a one-of-a-kind surge in human expansion. Soon they will be just memories.” > **— W. Daniel Hillis**, *2007, Edge Annual Question, “WHAT ARE YOU OPTIMISTIC ABOUT?”* [[reminders/Civilization/Human Population Growth Was a One-Time Historical Surge by W. Daniel Hillis|Human Population Growth Was a One-Time Historical Surge by W. Daniel Hillis]] > “While the United States is among the nations leading the world in monitoring and mapping its own territory, most of the world has not been mapped. We, as humans, lack a sufficient survey of the geology, habitat, weather, and biological diversity of our home planet. For instance we have identified as few as 5% of all the species living on earth. A detailed map of the planet, which would include geological assets, urban impacts, ecological assessments, and detailed cartographic information would be invaluable to business, military intelligence, social work, and peace and prosperity, at the very least, to the US. As it is we are trying to run a planet with only a dim sense of what it is.” > **— Kevin Kelly**, *2003, Edge Annual Question, “WHAT ARE THE PRESSING SCIENTIFIC ISSUES FOR THE NATION AND THE WORLD, AND WHAT IS YOUR ADVICE ON HOW I CAN BEGIN TO DEAL WITH THEM? - GWB”* [[reminders/Exploration/We Are Running a Planet We Have Barely Mapped by Kevin Kelly|We Are Running a Planet We Have Barely Mapped by Kevin Kelly]]