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Are there known unknowns?
What is the difference between known unknowns and unknowns?
What does 'unknown knowns' mean?
Do we know the unknowns we don't know?
Unknown unknowns (unexpected or unforeseeable conditions), which pose a potentially greater risk simply because they cannot be anticipated based on past experience or investigation. Known unknowns result from recognized but poorly understood phenomena.
Sep 1, 2005 · 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.
Mar 1, 2009 · There are known unknowns. That is to say, there are things that we now know we don't know. But there are also unknown unknowns. There are things we do not know we don't know.’. As a result, he was almost universally lampooned since many people initially thought the statement was nonsense.
- David C. Logan
- 2009
“There are known knowns, things we know that we know; and there are known unknowns, things that we know we don't know. But there are also unknown unknowns, things we do not know we don't know.” ― Donald Rumsfeld, Known and Unknown
Mar 27, 2014 · The title of the movie, The Unknown Known, comes from Rumsfeld's most famous statement while serving as George W. Bush's secretary of defense: As we know, there are known knowns; there are...
- David A. Graham
Dec 12, 2020 · To know that there are unknowns in any given area (or even unknown generally) hints at the fact that we are at the least (metaphorically) on the periphery of those unknowns. In other words,...
Nov 30, 2007 · Plain English speakers cover your ears - the once derided "unknown unknown" has been gaining currency and its latest advocate is British politician Jack Straw. First it was mocked, then turned...
