I have never claimed to be able to establish that CI-81 is dead by information-theoretic criteria. I can't do that, any more than Luke can prove the opposite. (However I will say that I believe Aubrey de Grey and I agree on the types of injuries that would result in information-theoretic death, (as we've discussed it, before), and that I believe SA's patients have been subjected to that degree of damage.)
This would be interesting to know about. As would be the mechanism by which SA patients (all of them?) have recieved such damage.