"I shall assume that such a species will... develop a self-replicating universal constructor with intelligence comparable to the human level—such a machine should be developed within a century, according to the experts...—and... combined with present-day rocket technology would make it possible to explore and/or colonize the Galaxy in less than 300 million years, for an initial investment less than the cost of operating a 10 MW microwave beacon for several hundred years, as proposed by SETI..."
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Educators from the United StatesScience authorsCosmologistsPhysicists from the United StatesChristians from the United States
Original Language: English
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Frank J. Tipler
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