ancient astronauts snowball earth black sea deluge hypothesis documentary hypothesis variability hypothesis alvarez hypothesis biophilia hypothesis scientific wild-ass guess entourage effect marcan priority endurance running hypothesis somatic marker hypothesis obesity paradox ad hoc hypothesis grand tack hypothesis anfinsen's dogma analysis of competing hypotheses knowledge gap hypothesis trivers– willard hypothesis janzen– connell hypothesis joint hypothesis problem landscape zodiac expensive tissue hypothesis eocyte hypothesis augustinian hypothesis farrer hypothesis marcion hypothesis slavery hypertension hypothesis protein leverage hypothesis two-gospel hypothesis efficient coding hypothesis bold hypothesis broad spectrum revolution northwest germanic glasgow chronology odysseus unbound wiseman hypothesis
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