Jurisdiction is a way of holding power that is neither ownership nor majority vote. Its source is participation itself: a participant who is genuinely implicated in a set of conditions — who takes part in them, is exposed to them, or carries their consequences — thereby holds legitimate reach over them, and only over them. Reach is the source; bounding is the discipline. A participant who carries a function has standing to exercise that function over a particular territory of decisions — and only that territory. The governing question becomes: who has legitimate jurisdiction over this decision, given who actually participates in and bears it, and what constrains that reach?
Jurisdiction reads a pattern; it does not create one. Consequential participation already lays down a relational topology — who bears the consequences, who contributes, who is exposed, who consented, who depends on the outcome, who can walk away, who holds information others lack, who is more deeply affected. Jurisdiction is the institutional recognition of that topology, which is why it is graded and overlapping rather than bounded: two participants can both hold legitimate jurisdiction over the same matter — unequally, and neither of them totally — because their consequences overlap. Ownership is one source of such a claim; it is neither the only one nor automatically the largest. And the outer limit of any jurisdiction is another participant’s standing: reach may run as far as real implication carries it, and no farther than the point where it would begin to consume the standing of those it touches.
Functionally distributed power
Take a bridge. The engineer has authority over its tolerances; the community over whether it wants a bridge at all; residents over questions of displacement; physical reality imposes limits none can vote away; and whoever funds it gains no automatic supremacy. Authority sits wherever the relevant function and standing actually are.
Mandate and limit together
The discipline is that every jurisdiction comes with a boundary. A function that judges what is structurally viable does not thereby decide what is worth doing; a function that names priorities does not decide what is materially possible. Each authority carries a mandate and a limit, so that no single function can colonize the whole. Jurisdiction is the structural expression of consequential participation: the reach a participant holds is created by, and answerable to, the same participation and consequence that the reciprocity function governs — held to proportion by commensurability, whose sharpest failure here is jurisdictional excess, reach exceeding implication. And because a shared field is always richer than any scheme drawn over it, jurisdiction follows consequential participation but never exhausts it: the read is lossy, so a jurisdiction must stay proportional, contestable, revisable, and sensitive to changing consequence rather than harden into a permanent boundary. The mistake is never that the map is approximate; it is pretending the map is the territory. See Power Becomes Jurisdiction.