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So tell us:: 
Look, there's the man in the moon! No harm in spotting him: the faculty of seeing patterns is hardwired in the human brain. And a fine thing too. It is the foundation of the sciences, both good: Hey, apples fall earthward! Every time! When I get into my bath, it overflows! And bad: Of course the bloody sun goes round the earth! Can’t you see? The difference lies in testing. And the problem is unquestioning belief in these illusions.