Is the possibility of cryonics success too low?

Is the possibility of cryonics success too low? Cryonics is based on the hypothesis that at some moment in the future a technology will be developed that will make it possible to resuscitate cryo patients by removing damage done by freezing, as wel as the initial cause of life activity termination. To prove that cryonic will fail it is necessary to prove that no future technologies – no matter how perfect – will be able to reanimate a cryonized patient But if we consider what is accepted as common now and imagine how these things were viewed in the 18 century, for example, it becomes clear that it is difficult to argue on a reasonable basis that future medical technology will never be able to repair damage inflicted during the first hours or days after a legal death of a cryopatient and during cryoconservation. On this evidence, the conclusion of the cryoconservation contract seems a reasonable safety measure. If cryonics fails, you are dead anyway; if it succeeds, it can save your life. (And your saved life will be extremely long and healthy, considering how perfect medical techniques must be to resuscitate you). Most experts in the field of molecular nanotechnology are convinced that at an advanced stage of development nanotechnologies will make patients reanimation possible. Thus, it is possible that cryonized patients will be reanimated as early as in the coming tens of years. The uncertainty of the technical feasibility of reanimation may prove even less than other uncertainty factors, such as the danger to unhappily loose one’s life (to drown in the ocean, to lose one’s brain content due to the Alzheimer disease, to perish in the fire, etc.), the banckuptcy of your cryonic company, the world-wide disaster or the possibility that people of the future will not want to reanimate you. Hence, the Crypconservation contract is far from being 100% guarantee of survival. Still, your active participation in the cryonics development can raise the probability of your revival after death and cryoconservation.