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If someone in 2012 wants to criticize Henry Ford because he didn't know everything about automobiles a century ago, it's a little silly. He knew what he knew given the science and the technology of his day - he revolutionized his field.  Freud got a lot wrong about psychology but he created the only unified theory of psychology recognized by people today. Criticizing him is as quaint and pointless and irrelevant as someone criticizing a 19th century analysis of Coleridge - any researcher doing it is likely to get a "someone paid for them to write this?" response.