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Pastimes : Clown-Free Zone... sorry, no clowns allowed
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To: Bid Buster who wrote (339928)8/6/2007 1:51:48 PM
From: blind-geezer  Read Replies (1) of 436258
 
en.wikipedia.org

Unknown unknown
From Wikipedia, the free encyclopedia

In decision analysis, an unknown unknown, often shortened to unk-unk, is an uncertainty that is unanticipated and, hence, unaccounted for in a formal decision model. Unk-unk may also refer to unanticipated decision variables, although this usage is less common.

The former U.S. Secretary of Defense Donald Rumsfeld discussed unknown unknowns at the Defense Department Briefing on February 12, 2002:

“ Reports that say that something hasn't happened are always interesting to me, because 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. ”

so is this unknown a known unknown or an unknown unknown ???
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