Originally Posted By: MusicStudent
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


Of course this never addresses unknown knowns. That is to say the things we don't know that we do know.

-Chad


Chad (Hope that makes it easier)

TEMPO TANTRUM: What a lead singer has when they can't stay in time.