**Equivalence** The natrual equality of Accountability and Authority (contextual autonomy).\\ Sovereignty and Slavery are universally illegitimate theories of action in an optimal system. In mutualist relationships, an Entity with greater Authority/Accountability automatically incurs a Duty of Stewardship for those with less (significantly), to the extent that they are capable of withou causing net harm to the system. {{justice:equivalencedimensions.png?direct¢er}}\\ One application of this principle is to determine Stewardship and resolution of inequality. This model shows 2 Agents (Entities) that have unequal autonomy, and their position on the line of Equivalence. The Agent with the higher position on the line incurs the Duty of Stewardship.\\ {{humansystems:equivalence.png?direct¢er}}\\