How to challenge assumptions, starting with the one you never stated
People close to me say I’ve changed since I began working on myself, and not entirely for the better; what would they have to be right about for me to listen?
Question 23 of the Index
The beliefs that shape what you do are rarely the ones you would defend in an argument. Those are the stated ones, and stated beliefs can be examined, contradicted, and given up. The ones doing the actual filtering never get said out loud, which is exactly why nothing ever refutes them.
This is why arguing with yourself does not work very well. You can only argue against a claim, and the claim is not where the trouble is. You end up interrogating the position you already know how to defend, which feels like rigour and leaves the foundation untouched.
The move that works is not more scrutiny. It is borrowing someone else’s vantage point long enough to see what they would have to be right about. Not whether they are right, which you can dismiss in a second, but what would have to be true for their reading to hold. That question has a way of naming things you have never written down.
It is uncomfortable in a specific way, and the discomfort is the signal. A belief you can hold up and turn over without any cost was probably never load-bearing. The one that makes you want to explain yourself before you have finished reading the sentence is the one worth finding.
Why your assumptions stay hidden
Hidden assumptions are hard to find because they are never stated, so they are never tested. Confirmation bias does the rest. Once a belief is running things it picks the evidence that reaches you, and the evidence it picks agrees with it. Telling yourself to question your assumptions does not get past that, because the same filter decides which assumptions you notice.
Changing sides does get past it. To steelman a view is to put it in its strongest form, the version its best defender would sign. Then ask what would have to be true for that version to be right. This is how to test your assumptions without leaning on the faculty that holds them: you stop asking whether you are right and start asking what the world would look like if you were not.
Bring the thing you are most sure about, and let the room ask after what is holding it up.
No account, no card, one exchange. Yours to keep.