In Feynman's story, the "alien" we meet is an artificial human (a biological Locutus, if you will) built using a description we sent them rather than a coincide

In Feynman's story, the "alien" we meet is an artificial human (a biological Locutus, if you will) built using a description we sent them rather than a coincidentally humanoid life form. For a throw-away illustration taking only a couple of minutes in the middle of a lecture about symmetry, the guy filled in a lot of the obvious gaping holes.