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Continue to ChatUnder normal conditions the research scientist is not an innovator but a solver of puzzles, and the puzzles upon which he concentrates are just those which he believes can be both stated and solved within the existing scientific tradition. - Thomas Kuhn from https://whatsmyquote.com/quote/under-normal-conditions-the-research-scientist-is-not-an-innovator-but-a-solver-of-puzzles-and-the-puzzles