'2057 On October 4, the centenary of Sputnik 1, the dawn of the space age is celebrated by humans on Earth, the Moon, Mars, Europa, Ganymede and Titan, and in orbit around Venus, Neptune and Pluto.' —Arthur C. Clarke

Created by gwern on 2010-10-26; known on 2058-01-01

  • gwern estimated 1% on 2010-10-26
  • gwern said “http://www.arthurcclarke.net/?scifi=3on 2010-10-26
  • gwern said “celebrated, perhaps. by humans? no.on 2010-10-26
  • anonym estimated 2% on 2010-11-27
  • JoshuaZ estimated 1% and said “If it were “at least two of these bodies” I’d find it much more likely. on 2011-01-01
  • JoshuaZ said “There’s really no reason to orbit Venus or Neptune with humans.on 2011-07-07
  • Anubhav estimated 0% and said “Yay conjunctions!on 2011-10-12

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