

Given this definition: https://my.clevelandclinic.org/health/diagnostics/22327-differential-diagnosis
Your healthcare provider will compile a differential diagnosis, which is a list of conditions that share the same symptoms to help make a final diagnosis. The differential diagnosis will direct your healthcare provider to offer tests to rule out conditions and lead them to find the cause of your symptoms.
Seems one builds a list of other things that could be the answer. Then one rules those things out.
Seems a lot like building a hypothesis (ensuring it is falsifiable), and then proving it wrong.
Edit: In “Clue”, I make suggestions in the late game where I expect only one part is falsifiable.
They had a lot of names for it.
And a lot if uses.
How much would cause brain damage, and how much brain damage did the average Roman have?