You don't. You can only hope that a) future people won't revive you unless they're somewhat confident it'll leave you better off than you were when frozen, and b) worst comes to worst, they can still euthanize you.

Cryonics is ultimately a bet on future technology and future humanity.

Future people will use the frozen as a resource. I would buy a 2139-October call option on 100-frozen-hopefuls ... that's when I estimate techniques for revival will be viable and when legal hurdles to mass exploitation will be overcome. In 120 years nobody will care about your intentions in being frozen.

...why? How could there possibly be utility in a corpsicle when you could much more easily achieve the same thing with AI?

> I would buy a 2139-October call option on 100-frozen-hopefuls.

Unless you live inordinately long, you'll only be in a position to benefit from that if you are wrong about it being a worthwhile investment. (But right about the technological enablers—just wrong on the socio/legal issues.)

It seems unlikely to me that we'd acquire the ability to revive a brain from death before the state of medical technology advances sufficiently to repair nerve damage or regenerate organs. You could put a kind of guarantee into this by only having your head or brain preserved, so the minimum viable tech level for resurrection would be regrowing a body.

I'd be more concerned with the emotional and mental challenges of being revived centuries hence, which would be considerable to say the least.

There's nothing new about all this...

Tutankhaman will tell you what to expect when you use cutting-edge technology and preservation techniques in the hopes of some future civilization reviving you.... you'll end up under glass in a Museum. Hell, nobody even TRIED to revive King Tut... you think they'll put much effort into a bunch of anti-freeze saturated popsicles? Seriously doubt it.

If you look far enough in the future it is probably feasible to engineer organs in the long run, or who knows maybe full bodies?