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The Five Ages of the Universe : ウィキペディア英語版 | The Five Ages of the Universe
''The Five Ages of the Universe'' is a popular science book written by Professor Fred Adams and Professor Gregory P. Laughlin about the future of an expanding universe first published in 1999.〔(website showing inside book(copyrighted-copyright Fred.C.Adams and Gregory Laughlin All Rights Reserved) ) retrieved 21/09/2011〕 == Book contents == The book ''The Five Ages of the Universe'' discusses the history, present state, and probable future of the universe, according to cosmologists' current understanding. The book divides the timeline of the universe into five eras: the primordial Era, the Stelliferous Era, the Degenerate Era, the Black Hole Era and the Dark Era. In addition to explaining current cosmological theory, the authors speculate on what kinds of life might exist in future eras of the universe. The speculation is based on a scaling hypothesis, due to Freeman Dyson, the idea being that all other things being equal the rate of metabolism—and therefore rate of consciousness—of an organism should be in direct proportion to the temperature at which that organism thrives. The authors envision life forms completely different from the biochemical ones of Earth, for example based on networked black holes.
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