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Essay on the development of civilizations.
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A couple of possible resolutions to the question of galactic colonization.
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Drake's equation attempts to estimate the number N of currently extant civilizations in our galaxy that would be able to contact each other.
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Lecture notes from a college cosmology course.
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Article asking, "Could galactic empires exist?" and "What is keeping advanced extraterrestrials from claiming every star system in sight?"
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Suggests that aliens might be "preparing" mankind for the eventuality of meeting species from other worlds.
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Long article discussing the implications of what is known so far about other life in the universe.
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Discusses the Allen Telescope Array (ATA) scheduled to be completed by 2005 and the search for extraterrestial life as it related to Fermi's Paradox and the Drake Equation.
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Article discussing Fermi's Paradox and its implications.
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Describes the famous formula for estimating the number and character of alien civilizations within the galaxy. Includes an online form that calculates your numbers.
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Introductory articles on the theory.
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Discusses some of the logic behind arguments for and against humans being alone in the universe.
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Links to articles and documents explaining or discussing the paradox.
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Encyclopedia article summarizing the concept.
