The Impact of What We Dont Know

Posted on Friday, June 6th, 2008 at 7:50 pm

Then-U.S. Secretary of Defense Donald Rumsfeld made the following statement at a Defense Department briefing in February 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.

蒙了吗?各位看官,有人称之为瞎扯淡,嘿嘿,不过看起来还蛮有意思的。

拉姆斯菲尔德的名言

就我们所知,有些事情早已是众所周知的。有些事情我们知道自己知道。我们也知道,有些事情早已是已知的未知,这也就是说,我们现在知道了,有些事情我们其实并不知道。同时也有一些事情是未知的未知——这些事,我们并不知道自己不知道。

He was talking about known unknowns that we know about and known unknowns that we don’t know about and the unknown unknowns that we don’t know we know. :mrgreen:

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