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27th May 2020, 10:24

#59 (permalink)

wishiwasupthere

Join Date: May 2008

Location: Australia

Posts: 565

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As we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns—the ones we don't know we don't know.

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