Cryonics And The Zombie Problem
Thinking about Glenn Reynolds, Ray Kurzweil, and cryonics, I began to go back to the only undergraduate courses that I've been able to use throughout my adult life (though they've consistently also gotten me into trouble, too), my minor in Philosophy. The video embedded above is by Jeffrey Kaplan, a Philosophy prof at UNC Greensboro, whose online courses I've found useful in keeping my thinking active in the field. In this one, he discusses the philosophical concept of a "zombie", a being that is physically identical to a human in every way. It behaves, talks, and reacts exactly like a person, but there is "nobody home" inside.
This is a thought experiment that is used against the argument of physicalism, which is roughly equivalent to materialism. It seems to me that this is the philosophy underlying cryonics: notwithstanding you have been legally dead for hundreds of years, if you were vitrified, properly frozen quickly enough after your death, "science" will eventually find a way to bring you back to life. This is notwithstanding the traditional Christian view that at death, the soul leaves the body and goes on to particular judgment and a choice between heaven and hell, whence the soul does not return to this world.
Cryonics isn't consistent with this view. While I've never seen a philosophically coherent explanation, the impression I have is that it believes "science" makes continual progress in medicine, and if as of now, a patient can flatline in an ambulance, he can be variously shocked, injected, or chest-pounded and "brought back to life", "science" will continually extend the period and means by which this can be done. In other words, someone may flatline now and go without medical attention for a matter or minutes or hours, such that rigor mortis sets in, the body goes cold, and EMTs say it's not possible to bring him back.
As far as I can determine, cryonics says that "science" will progressively extend this period of eligibility for resuscitation, so that in the fairly near term, it may be possible to shock, inject, pound the chest of, or otherwise manipulate dead people after a much longer period in order to bring them back, rigor mortis, decomposition, or no. In addition, "science" will continually find ways to cure diseases that are now thought to be fatal, so that at some point in the future, a person can be cured of, say, stage four cancer, and it isn't a big step to conceive of someone who has previously died of it being "brought back to life" and then successfully treated.
All this requires is that we ignore the metaphysical system that posits a soul that leaves the body at the time of death. The teachng of the Catholic Church is that only three humans have ever bypassed death and gone straight to heaven -- the patriarch Enoch, the prophet Elijah, and the Virgin Mary, but they took their bodies with them, so they aren't eligible for cryonics. Everyone else, including Christ Himself, died. In all these other cases, their souls left their bodies at the time of death.
In 1 Kings 17, the prophet Elijah brought back to life the son of the widow of Zarephath. In John 11:38–44, after calling "Lazarus, come out!" to a man dead for four days, Jesus commanded the onlookers to unbind him. However, these are miraculous resuscitations, and they reverse the process by which the soul had already left the body. In addition, we must assume that both the widow's son and Lazarus eventually died a second time.
As far as I can see, although so far, there's no cryonic creed, cryonics envisions a potentially infinite series of deaths, resuscitations, and cures, if repetitions of the process are necessary at all. The possibilities are that the formerly dead subject is brought back to life and cured of the previously "fatal" condition via "science". Should the subject then "die" again of some new disease, he can be vitrified again and the process repeated with the understanding that "science" will solve the problem later.
However, as I understand Ray Kurzweil, whom Glenn Reynolds apparently deems authoritative, the whole question of physical death and resuscitation is only part of an intermediate state, and eventually we will evolve into purely digital entities existing in a really, really big eternal computer, at which time "science" will have completed its task. How this relates to The Matrix is a question as yet unanswered.
The problem as I see this is that the humans envisioned by cryonics are philosophical zombies. They have chemical, neurological, and biological processes exzactly like humans, with the critical exception that there can't be a soul that leaves the body at the time of death. This seems to be illustrated in the legal case of Alcor Life Extension Foundation v. Richardson (2010). According to Alcor's Wikipedia entry:
When Alcor member Orville Richardson died in 2009, his two siblings, who served as co-conservators after he developed dementia, buried his remains even though they knew about his agreement with Alcor. Alcor sued them when they found out about Richardson's death to have the body exhumed so his head could be preserved. Initially, a district court ruled against Alcor, but upon appeal, the Iowa Court of Appeals ordered Richardson's remains be disinterred and transferred to the custody of Alcor a year after they had been buried in May 2010.
So even after someone has been dead and buried for a year, his head can still be exhumed and frozen with the idea that they can bring him back later, effectively no different from an EMT pounding his chest. And the assumption is that this will be the same Orville who died in 1990. But how do we assume this? I think the only conclusion we can have is that cryonics is physicalist: Orville is simply the sum total of his DNA and all the associated molecules, cells, neurons, and synapses. If we can get them running again, we have Orville, no need for anyone else to be home.Bringing him back from a skull with bits of decomposing flesh clinging to it may seem like a challenge, but "science" is up to the task. This is kind of like someone who wants to restore a 1960s Mustang he's found in a junkyard. Repace the tires, belts, and hoses, rebuild the engine and transmission, patch up the body and upholstery, turn the ignition, and voila, a Mustang! It's the turn the ignition part that has me puzzled.
How do you turn the ignition on a dead body, no matter how thoroughly rebuilt? Is it enough just to shock it or have an EMT pound its chest? And what's the guarantee it's Orville when it wakes up? What if it's just a zombie, breathing, pumping blood, but nobody home? Or what if it isn't Orville, it turns out to be Suleiman the Magnificent?I'd love to be in a position to put these questons to either Glenn Reynolds, Ray Kurzweil, or both, but I can tell you right now what they'll say: we don't know, we've never brought anyone back to life from having his head frozen, so we don't know how to solve those or even other unforeseen problems that will emerge. But "science" will be able to figure these things out as they arise! Not to worry!
By the way, "science" as the term is used by cryonicists is a logical fallacy, hypostatization, treating an abstraction as a concrete entity. But the whole basis of cryonics is also a question-begging argument, that while nobody can answer questions like how we can guarantee the Orville we resuscitate isn't a zombie, "science" can solve these and all other problems down the road.
What does it say about our educational system that Glenn Reynolds holds a law degree from Yale, has a prestigious endowed chair at the University of Tennessee, and can use this prestige to pitch the purest moonshine? As a law professor, he ought to have a special sensitivity to fraud, but he simply doesn't seem to.






