The probability that they stay in shape for even a couple of centuries is abysmally low (how many companies survive that long?).
The probability that, in the unlikely case your dead frozen head isn't thrown away at some point in time, you can be revived from it is so extraordinarily remote that I don't see the point.
It is way more likely that at some point technology will allow to simulate famous personalities from their writings, photos, etc than from a frozen piece of meat.
When you're dead, you're dead. Get over it, most people who have been are dead, too. And like the saying goes, cemeteries are full of indispensable men.
Don't get me wrong, I'm not big on the stuff. But it's no Pascal's Wager either. This is way better than supernatural shit. This is a bad bet, not an impossible bet / illogical argument.
Eh, I'll give you part of Pascal's Wager. The other part of it is the logical absurdity of thinking that someone who doesn't already believe can be blackmailed into believing. Pascal's Wager can only be used to defend belief, not create. (But every time I've heard someone IRL use it they seem to not understand that). That's a big part of what Pascal's Wager "is" to me.
I think that argument applies to cryonics. :) The people who invoke the wager are trying to defend their belief, not actually convert others. To anyone who doesn't believe in cryonics, the wager is pretty absurd.
Sure, thousands of years of torture are possible for you if you're a cryonicist -- but in such a world the same risk would apply to trillions of other sentients. If you aren't completely selfish, you're better off investing your energy in preventing such a world instead of trying to dodge the bullet personally.
> If you aren't completely selfish, you're better off investing your energy in preventing such a world
How is getting your head frozen investing in preventing such a world? If you want to improve the future, maybe you should invest your $25K in humanitarian efforts instead of a desperate attempt at personal life extension.
> How is getting your head frozen investing in preventing such a world?
It isn't, directly. It is an investment in something else which makes that a more important issue to an individual. That affects the probability of the individual taking actions that favor the given outcome. The main purpose of getting your head frozen is saving the individual's life directly, but it does have this positive externality.
> If you want to improve the future, maybe you should invest your $25K in humanitarian efforts instead of a desperate attempt at personal life extension.
How does passively letting yourself die increase your incentive to plan for a better world in the distant future?
If you think a person can be reanimated from their writings, even a tiny piece of carefully preserved neural tissue should be extremely valuable for making sure the person is simulated accurately.
You should probably stop using the terms "dead" and "frozen" in this context. Cryopreservation seeks to avoid ice crystal formation, and cryonics seeks to avoid death. So it has the effect of affirming the consequent.
The probability that, in the unlikely case your dead frozen head isn't thrown away at some point in time, you can be revived from it is so extraordinarily remote that I don't see the point.
It is way more likely that at some point technology will allow to simulate famous personalities from their writings, photos, etc than from a frozen piece of meat.
When you're dead, you're dead. Get over it, most people who have been are dead, too. And like the saying goes, cemeteries are full of indispensable men.