Traversability is the health metric for governance. A system is not healthy merely because it is fair; it must also be passable. Can a participant understand who decides, know why, find the relevant rules, get a timely answer, appeal an error, change jurisdictions, remove incompetent authority, initiate an experiment, and resolve conflicting claims? When those answers start turning to no, bureaucracy is increasing — no matter how equitable the system looks on paper.
Why it belongs in the model
A structure can distribute rights beautifully and still be unusable: everyone consulted, nobody able to decide, every action requiring a dozen approvals. That is not distributed power; it is ecological waste — capacity that exists and cannot move. So No Wasted Geometry treats traversability as something to actually measure: how many steps resolve an ordinary issue, how long an appeal takes, how many veto points exist, and how often people abandon legitimate action simply because the system is too hard to navigate. Abandoned legitimate action is waste as surely as unemployment is. A specialized form of it, exit traversability, asks the same question of leaving: whether a participant can walk away from a form that no longer fits without being annihilated. See Who Gets to Decide?.