... there are known knowns; ... but there are also unknown unknowns ...

Quote of the Week 20

"... 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. ..."
― Donald Rumsfeld


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Triggered by Ethan Mollick's tweet and follow-up tweet.


See also: Wikipedia


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