Kahn's specific (like fusion or space colonies). How his scenarios have held up since 1976.
He argues that "exhaustible" resources are actually plentiful. For instance, he points out that aluminum makes up 8% of the earth's crust, making claims of its total exhaustion mathematically improbable. The next 200 years: a scenario for America and ...
Kahn envisions a world of 15 billion people who are "numerous, rich, and in control of the forces of nature," with a per capita gross world product of approximately $20,000 (in 1976 dollars). Kahn's specific (like fusion or space colonies)
Despite the overall optimism, Kahn does not suggest the path will be easy. He identifies "transitional problems" related to: For instance, he points out that aluminum makes
Humans were few, poor, and at the mercy of natural forces.
The book was a direct rebuttal to "neo-Malthusian" warnings that population growth and resource depletion would lead to catastrophe. Kahn challenges these views across several key sectors: