I guess “unknown knowns” are the counterpoint to “unknown unknowns”—things it never occurred to you to consider, but didn’t. Eg. “We completely failed to consider the possibility that the economy would mutate into a continent-sized piano-devouring shrimp, and it turned out we were right to ignore that.”
We completely failed to consider the possibility that the economy would mutate into a continent-sized piano-devouring shrimp, and it turned out we were right to ignore that.
I guess “unknown knowns” are the counterpoint to “unknown unknowns”—things it never occurred to you to consider, but didn’t. Eg. “We completely failed to consider the possibility that the economy would mutate into a continent-sized piano-devouring shrimp, and it turned out we were right to ignore that.”
That’s a survivor bias.