A related model that can help you uncover unknown unknowns is scenario analysis (also known as scenario planning), which is a method for thinking about possible futures more deeply. It gets its name because it involves analyzing different scenarios that might unfold. That sounds simple enough, but it is deceptively complicated in practice. That's because thinking up possible future scenarios is a really challenging exercise, and thinking through their likelihoods and consequences is even more so.
Chapter:
Decisions, Decisions
Section:
Beware Of Unknown Unknowns