"A diversity of approaches is necessary if there is to be a good chance of hitting on one that works. Progress is a social undertaking & achievement, because people see things differently"

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Darwin's greatest achievement was to show that the appearance of purpose, planning, teleology (design), and intentionality in the origin and development of human and animal species was entirely an illusion. The illusion could be explained by evolutionary processes that contained no such purpose at all. But the spread of ideas through imitation required the whole apparatus of human consciousness and intentionality

— John Searle