Some cognitive architectures intrinsically exhibit instability of values (e.g. those where goals compete stochastically for priority), but Omohundro's drive to protect the utility function from modification should prevent a self-modifying AI with a stable architecture from adopting an architecture that is knowably or even possibly unstable.

However, the human cognitive architecture certainly looks to have value instability, and so this will be a problem for any attempt to codify a fixed human-friendly utility function by renormalizing the existing unstable architecture. Omohundro's drive won't automatically work here since the starting point isn't stable. It's also very possible that there's more than one reflectively stable equilibrium that can be obtained starting from the human decision architecture, because of its stochastic or context-dependent aspects.