Редактирование: Cryonics (раздел)

== Criticism ==
''Main: [[Arguments against cryonics]]''
<blockquote>''Interestingly (and somewhat to the author’s surprise) there are no published technical articles on cryonics that claim it won’t work.'' <br>- [[Ralph Merkle]]</blockquote>

Most criticism of cryonics arises from fundamental misconceptions (For example, that cryonics involves freezing) and ignorance of current [[#Cryoprotectants|cryopreservation]] techniques and procedures.

* Scientific American{{cn}}

'''Abstract:''' <blockquote>The preservation of cells, tissues and organs by cryopreservation is a promising technology nowadays. However, the primary purpose of this science has been diverted to a doubtful technology, cryonics. Cryopreservation techniques are now being adapted with the aim of preserving people’s bodies after death in hope that in the future, medicine will be able to revive them. In this report we analyze both scientific and social issues involved with this technology. We first studied the events taking place in the cells during regular freezing. Various research experiments show that freezing causes damage to the cells. Therefore, vitrification presented by cryonics companies as an alternative, seems to be reasonable. We also looked at all the difficulties of this procedure and at the injuries that such a treatment could cause to the human body. Studies show that the vitrification procedure suppresses the injuries related to freezing but the use of cryoprotectants, although necessary, is toxic to the cells. Organs, such as kidneys, are the largest entities ever vitrified and thawed with success. By analyzing all present scientific data, we conclude that there is a limit to the size of living matter that can be cryonised effectively; therefore we conclude that it is not possible to cryonize an entire human body with the current technology without causing severe damage to it.</blockquote>

* [http://rudar.ruc.dk/bitstream/1800/6115/1/Final%20-%20Group%207%20-%20Evelina%20and%20Juliette.pdf Paper]

While definitely great progress from most cryonics 'criticism' to date, the paper seems to address the well-known fact that reanimation from cryopreservation is impossible (Or nearly so) due to the toxicity of [[#Cryoprotectants|cryoprotectant]] solutions. The most discussed methods of revival, [[#Molecular Nanotechnological Repair|Molecular Nanotechnology]] and [[#Whole Brain Emulation|Whole Brain Emulation]] are not discussed.