IDK how things work in Russia, but in the US when you sign up you pay for a life insurance policy that, when you die, pays out to the company to fund long-term preservation.
Also, the people involved know it’s unlikely they’ll ever be resuscitated. Actually, there have been polls done asking people who are signed up for cryonics vs. the general public, what they think the odds of eventual resuscitation are, and those signed up rate the probability of success lower, they just treat small probabilities of high-impact possibilities differently in their decision making processes.
Also also, minor pedantic quibble, the term of art for preserving brains or bodies by freezing is cryonics. Cryogenics is the general term for anything involving extremely low temperatures.
And no, I’m not signed up for any kind of cryonics, though I have considered it.
