A medieval Venetian glassblower, asked why he shaped a vase a particular way, would often answer: 'Because that is how vases are shaped.' The tradition had become the reason — and nobody noticed the circular trap. This is what Hannah Arendt called 'thoughtlessness': not stupidity, but the habit of accepting inherited categories so thoroughly that we stop asking what they are actually for. Applied to first-principles thinking, it points to something specific — the real barrier usually isn't finding bedrock truths, it's recognizing that many of our 'categories' (what counts as a problem, what counts as a solution, what domain something belongs to) are themselves inherited conventions dressed up as obvious facts. The practical move today: before solving a problem, ask whether the way you've framed it was given to you by habit or chosen by you deliberately.

Think of a problem you're currently working on — what would change if the category it lives in (a 'work' problem, a 'communication' problem, a 'resources' problem) turned out to be the wrong label entirely?

Drawing from Existentialism / Political Philosophy — Hannah Arendt