“The only string theories we really understand well have exact supersymmetry.”

—  Michael Dine

Source: [Loose Ends: String Theory and the Quest for the Ultimate Theory, World Science Festival, 2 August 2019, https://www.youtube.com/watch?v=YSWd21z2qqE] (quote at 40:20 of 1:27:24)

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Michael Dine 1
American physicist 1953

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