On the regularities of development of extraterrestrial civilizations and the search strategy

Details On the regularities of development of extraterrestrial civilizations and the search strategy On the regularities of development of extraterrestrial civilizations and the search strategy

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983buda.iafcq....t&link_type=abstract

International Astronautical Federation, International Astronautical Congress, 34th, Budapest, Hungary, Oct. 10-15, 1983. 4 p.

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Extraterrestrial Intelligence, Energy Conversion, Evolution (Development), Technologies

Scientific paper

Possible forms of energy conversion, technologies, and interstellar projects on which advanced extraterrestrial civilizations may be occupied are discussed. It is suggested that if life began evolving in the Universe 8-10 billion years ago, then some alien civilizations may be presently reshaping and building galaxies by now, although no astronomical evidence for such feats is presently available. Limiting factors for civilizations are light speed and dependence for thermal conditions on the distance to the home star. Energy limitations will encourage continual reconfiguring of a civilization's energy usage until the prime energy source is the home star, around which city-worlds could be built. The techniques would eventually lead to star travel because of the ability to reform and use energy. However, if life came into existence everywhere in the Universe simultaneously at the phase change after the Big Bang, then even millions of years could transpire before initial attempts to colonize the galaxy are enacted. The limitations on terrestrial technology and energy supplies would then be the equivalent of those in other civilizations, indicating that millimeter wave transmissions would have a chance at establishing contact.

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