Every method in Intrinsic produces three numbers, never one. That's a deliberate design choice, not a hedge to avoid being wrong.
A single "intrinsic value" number is a kind of lie. It implies a precision that doesn't exist — nobody can forecast a decade of a business's cash flows to the dollar. Presenting one number invites you to anchor on it as if it were a fact, rather than the output of a model built on assumptions that are all, to some degree, uncertain.
How the range is built. Each method flexes its own key assumption up and down by a fixed amount to produce its bear and bull cases — the Graham formula and Forward P/E flex growth or multiple by roughly ±2 points, the DCF flexes both growth and discount rate together for a wider spread. These aren't statistical confidence intervals; they're a structured way of asking "what does this look like if I'm optimistic, and what does it look like if I'm cautious?"
How to use the range. The width of the range is itself informative — a business whose bear and bull cases are close together is one your assumptions have more conviction about; a wide range is a signal to hold your estimate more loosely, or to dig into which specific assumption is driving the spread.