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Title: Spaceship economics and other interesting concepts.
Review: The problem of population is one of regulating human behavior. He explains several concepts:1- Cowboy vs spaceship economics.2- The Malthus demostat.3- Exponential growth at a small rate and the carrying capacity of Planet Earth4- Our world is finite5- There will never be a perpetual motion machineA great thinker on ecology and human population.
