Polanyi thought science reached into the unknown along a series of what he called “growing points,” each point the place where the most productive discoveries were being made.105 Alerted by their network of scientific publications and professional friendships—by the complete openness of their communication, an absolute and vital freedom of speech—scientists rushed to work at just those points where their particular talents would bring them the maximum emotional and intellectual return on their investment of effort and thought. It was clear, then, who among scientists judged the value of
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