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File:A hunch-backed old man supported by a crutch with a Wellcome V0049727ER.jpg - Wikimedia Commons
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Innovating: A Doer's Manifesto for Starting from a Hunch, Prototyping Problems, Scaling Up, and Learning to Be Productively Wrong (The MIT Press): Perez-Breva, Luis, Fuhrer, Nick, Roberts, Edward: 9780262035354: Amazon.com: Books
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