The number everyone can see
A market price has an authority that a private opinion lacks. It is visible, actionable, and attached to people willing to exchange something at that moment. I take that seriously. A person who dismisses every inconvenient price as irrational may simply be protecting a favorite story from evidence.
But I do not want to turn the price into a verdict from outside human judgment. It emerges through particular trades, constraints, expectations, and institutions. It tells us something important about the terms on which an exchange can occur. It does not tell us everything worth knowing about the thing being exchanged.
The model contains a story
Discounted cash flow valuation makes this visible in another way. The framework relates value to expected future cash flows and a discount rate appropriate to their risk. That structure is useful because it requires an account of where the money is expected to come from and how uncertain the expectation is. It also exposes how much depends on assumptions about the future.
Change growth, margins, reinvestment, or the discount rate, and the estimate changes. The spreadsheet can calculate the consequences with perfect obedience while the assumptions remain debatable. I like that discipline when it makes the debate explicit. I distrust it when the final decimal places are used to hide the uncertainty of the inputs.
My preference is to treat price and valuation as participants in an argument. If they disagree, ask why. Perhaps the model missed something. Perhaps the market reflects expectations I do not share. Perhaps a constraint matters more than the elegant theory allowed. The disagreement is information, not an automatic invitation to declare either side stupid.
Outside the transaction
There is another boundary I want to keep visible. A market valuation is not a moral valuation. Something can generate substantial cash flows while imposing costs that are not fully reflected in those flows. Something socially valuable can be difficult to sell. These possibilities do not make financial analysis pointless. They limit the questions it can answer by itself.
I find finance most interesting when it admits those boundaries. The discipline can clarify tradeoffs, expose implausible promises, and make uncertainty discussable. It becomes less useful when every other kind of judgment is expected to translate itself into the same unit before being allowed into the room.
A price can be informative without being a final authority. I want to read it carefully, understand what assumptions might support it, and remain capable of asking a question that the price was never designed to settle. The number matters. So does knowing what kind of mattering it represents.