Inalienability

Inalienability is the property of certain rights — most centrally the right to one's own person — that cannot be validly transferred, waived, or sold even with the full consent of the person involved. The underlying intuition is that a future self cannot be fully bound by a past self's agreement: the person who would be enslaved tomorrow is not the same person who signed the contract today.

The voluntary-slavery paradox is the sharpest form of this problem for libertarian and anarchist thought. If self-sovereignty is the foundation of all rights, and voluntary exchange the basis of legitimate transactions, what prevents a person from selling their own freedom? The responses vary: that no contract can be binding if the bound party cannot exit (making slavery contracts unenforceable as logic); that the self existing under slavery is too degraded to be the self that consented; or that inalienability is a brute moral axiom not derivable from prior principles.

Inalienability sets the floor below which voluntary-association cannot go. A community that lets people fully contract away their future autonomy has not extended freedom but built a new mechanism for its permanent elimination. This is why even strongly voluntarist frameworks include unwaivable provisions: the right to exit, the right to revoke consent, the right to one's own body. Polycentric law must decide which rights are portable across systems and which cannot be bargained away — inalienability is less a constraint on freedom than a precondition for future freedom.