I'm currently reading the book, "A Briefer History of Time" by Stephen Hawking. Not to be confused with a "Brief" History, this is an updated version for the really stupid people. And yet it still goes over my head from time to time. Hence today's question from a thought brought up recently by jmc. How did the human eye evolve from nothing? I can't comprehend the natural selection of a human eye. I understand the Darwinian idea that tall giraffes beat out short giraffes, hence, only tall giraffes today. But, I don't understand how an eyeless creature formed an eye? Any evolutionists out there?