Accurate enough....back in the day when metaphysics was pretty much the only kind of physics.

However Aristotelian logic and the scientific method removed more and more of the uncertainty about what was knowable.

Properly employed, both tools refute many conspiracy theories.

Then we come to Donald Rumsfeld who brought us 'up-to-date'
on what was 'knowable'.

Apparently Iraqi WMD didn't make the cut for 'knowable' despite U.S. Intelligence reports to the contrary.

Quote:

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There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.

Donald Rumsfeld

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