• Heat
    Dec 10 2025
    Introduces thermodynamic problems for human habitats, whether to make the Earth's surface uninhabitable, outgoing longwave radiation (OLR), eliminating the greenhouse effect using sequestration, the thermal structure of the human habitat, the Earth population limit of heat, thermodynamic bottlenecks, and the conclusion.
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    35 min
  • Energy
    Dec 9 2025
    Discusses energy generation technologies, passive vs active, considers conventional nuclear power, geothermal, terrestrial solar power, space-based solar power (SBSP), the energy required per person, the Earth population limits of geothermal and terrestrial solar, the challenges of a space-based solar power constellation, and SBSP scaling
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    19 min
  • Elements
    Dec 8 2025
    Introduces elemental limits, and analyzes Oxygen, Silicon, Calcium, Iron, Aluminum, Nitrogen, Carbon, Chromium, Copper, Potassium and Phosphorus. Addresses waste management and recycling.
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    9 min
  • Food
    Dec 7 2025
    Explains indoor agriculture, compares indoor vs outdoor agriculture, and emphasizes the omnivorous diet.
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    5 min
  • Water
    Dec 6 2025
    Describes water management, the water required per-person and the Earth population limit of water.
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    3 min
  • Space
    Dec 5 2025
    Covers the square-cube law, the volume required per person, a moderate scenario using only already-inhabited land, the habitable space of the Earth, and the Earth population limit of habitable space.
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    5 min
  • Rules of This Game
    Dec 4 2025
    Describes the purpose and approach of this analysis, provides a timeline of population growth, and lists all of the bottlenecks it will consider.
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    7 min
  • Environmental Conservation
    Dec 3 2025
    Explains and addresses environmental concerns, offers space colonization as the solution to conservation concerns, and keeps the focus on the limit analysis of human carrying capacity on Earth.
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    5 min