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  • All crises begin with the blurring of a paradigm and the consequent loosening of the rules for normal research. .. Or finally, the case that will most concern us here, a crisis may end with the emergence of a new candidate for paradigm and with the ensuing battle over its acceptance.

    Thomas S. Kuhn (2012). “The Structure of Scientific Revolutions: 50th Anniversary Edition”, p.84, University of Chicago Press