[Arainach]

Unlikely in practice.

"My house burned down and inside was my spouse, who was my reco ery contact"

"My recovery contact died / isn't speaking to me / is backpacking in the Himalayas"

The problem isn't technical. It isn't a formal mathematical problem. It's that the real world is messy.

There are plenty of other classes of problems too. "This person committed a crime and their assets need to be seized", etc.