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Revival chance at Alcor vs Cryonics Institute

Question

As of the time of writing this question, the two major providers of cryopreservation in the US are Alcor, with 181 patients and 1,317 members, and the Cryonics Institute, with 177 patients and 1,859 members.

These organisations might differ in the chance of reviving their patients if the initial quality of cryopreservations is higher in one or the other, or if one organisation is likely to last longer than the other, or if when revival becomes possible one is better able to arrange this than the other.

What is the likelihood ratio of being revived before 2200 if one was preserved by Alcor vs. the Cryonics Institute while both were active?

If no patients from Alcor or the Cryonics Insitute are revived, this resolves ambiguously.

If only patients from Alcor are revived, this resolves above the upper end of the scale.

Otherwise, this resolves at the value (% of people revived, among those cryopreserved at Alcor while both organisations were active) / (% of people revived, among those cryopreserved at the Cryonics Institute while both organisations were active) at the start of 2200.

"Active" means that the organisation is currently officially offering cryopreservation to its members and storing them at its own facilities.

"Revival" means that the person would be able to meet the standard described in this question; either through conducting that specific test, or by some measurement that is equivalent such as official statistics on the health of revived patients.

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