Ideal Audience, the I that follows Vision in the I.N.V.I.S.I.B.L.E journey, and the first tower of the Bridge to Market, defines who the business is best positioned to serve. Specifically, the audience experiencing the most urgent problem you solve.
Four quadrants: the audience profile (who they are, specifically), the core pain (the problem they need solved), the stakes (why it matters now), and the desired outcome (the result they're actually buying). Urgency is the filter most definitions miss. An audience with a real problem and no urgency produces admiring non-buyers.
This is the first tower of the Bridge to Market because every visible-world decision inherits from it: positioning is relative to their alternatives, content answers their questions, offers ladder to their desired outcome. Define the audience broadly to "keep options open" and you've kept exactly one option: being overlooked. The Overlooked Specialist archetype, good work, invisible to everyone because it's addressed to anyone, is what this module exists to prevent.
Isn't narrowing the audience risky?
Narrowing the message isn't narrowing the revenue. You can serve adjacent buyers who come anyway; you just don't aim at everyone, because aim pointed everywhere lands nowhere.