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stimulus :
"There can be a known known only if theres a known unknown, but there can never be an unknown unknown without a known unknown. Thus, every unknown unknown which is known is actually a known unknown which is unknown."
the conclusion above follows logically if which one of the following is assumed?
the content of this question is inspired by the "Rumsfeld Matrix." What would be a sufficient assumption for this question? Is this a hard question or did you find it on the easier end of SA questions?