The Stoic philosopher Chrysippus distinguished between two kinds of value: *axia* — the objective worth of a thing — and the price someone is willing to pay for it right now. He used this to argue that most pricing disagreements aren't about facts; they're about which kind of value each party thinks they're negotiating. Modern financial markets have made this distinction structurally invisible. A stock's price, its book value, its discounted cash flow estimate, and its narrative premium are four completely different things — but they all appear as a single number on the same screen. The dangerous move isn't paying too much; it's losing track of which type of value you're actually reasoning about. When an investment looks compelling, it's worth asking which of the four you're responding to — because each one has different evidence requirements and a different shelf life.

Pick one holding you feel confident about — what type of value is your confidence actually tracking, and what would falsify it?

Drawing from Stoic Philosophy / Ancient Greek Economic Ethics — Chrysippus of Soli