X-Message-Number: 3367 Date: 29 Oct 94 13:47:09 EDT From: John de Rivaz <> Subject: CRYONICS Brain Backup Report More Brain Backup: I have received very little support for the continuation of the paper newsletter, but Herr Klaus Reinhard (Germany) has contributed the following article, which is a updated version of one that appeared in Longevity Report 19. If there is to be another paper edition, and there is no objection, I would like to include some of the comments made on the subject on the Cryonet. Brain Backup Report is filed with the British Library and this will add to the stored records of the people involved! Future Revival with the Help of Information. Klaus Reinhard Important scientists, for example Professor Marvin Minsky, Dr Ralph Merkle, and Dr Hans Moravec, say that intelligent and self conscious computers are a possibility for the future. And they agree to the information paradigm;"If the essential contents of your mind could be transferred into a brain-like computer, then that computer would be you." Information can not only be stored in brains and computers. It can also be stored on paper, tapes or microfilm. Even inner mental processes such as thoughts, feelings, and visual images can be recorded and stored by these means. If we describe them by words or drawings, other people can understand the essentials. Anyone who wants to protocol his own thoughts, memories feelings etc in detailed diaries does note need particular talent as an author. While writing, he need only imagine that he must explain his thoughts and feelings to someone else. You cannot write down all your thoughts. However, as important memories and thoughts come back more frequently, you can record in the course of some years enough information about yourself to describe approximately your personality and your life history. Of course, along with your diaries, you should also keep photos, notes, personal documents and so on. As these records can be preserved, the question arises: Is there some chance that you can be revived in future only with the help of the records? Naturally, such a revival cannot be reached by simply transferring the information from the records into a computer. If we read a word we combine it with a complex set ("packet") of further information, e.g. about the appearance of the denoted object, its qualities, its relationship with other objects, activities or abstract concepts, and about the feelings connected to it. Therefore the thoughts and memories described in the records only by words or drawings must be completed by adding such information packets. A great part of the information in these packets is not individual. All members of a nation have a great knowledge of their native language, and about the world in which they live, in common. If you only take the members of a definite social group, the common features are even much greater. Individual information packets, eg packets that contain information about familiar persons, can be reconstructed with the help of diaries and photos. Consequently, after further advances in artificial intelligence and neuroscience, it will probably be possible to compute from the records, and from knowledge about the world in which the diarist lived, a network of information packets, very similar to that which was stored in his brain. The network emerges simply from the fact that each information packet contains information about its relationships with other packets. So the information packets are never isolated. They are combined into a complex structure. Researchers in artificial intelligence and cognitive science, such as Douglas R. Hofstadter, say that the information content of the brain can be described by such a network. Therefore the network of the reconstructed information packets can be considered as the reconstructed brain information of the diarist. Hofstadter calls the information packets active symbols, because they are represented in the brain by neural formations which can actively process information. In a brain- like computer, the information packets have to be stored in a system of billions of electronic modules. This system must be able to simulate all performances of the human mind. Dr Moravec expects that building such a computer, which can control a man like robot, will be possible as early as the next 50 to 100 years. Most researchers in artificial intelligence say that a brain-like computer, which can do everything a man can do, must be aware and able to feel. Consequently, if the brain information constructed with the help of the diaries and other records is loaded into a brain- like computer controlling a man-like robot, this machine will probably be aware and feel like the revived diarist. After his revival in the machine, the diarist will remember who he was before and see his new life as a continuation of his former life. If he feels uncomfortable with a second life in a robot, it might also be possible to download his reconstructed brain information into a new biological body created after his desires. Someone who wants to be revived with the help of his records will not only write down his memories, but also try to describe his way of information processing by using introspective techniques. The problem here is that the unconscious processes cannot be described. However, there is a good chance that they can be reconstructed approximately from the conscious processes, because all human brains are similar and much information about your individual brain is in your genes which can be preserved easily in several copies by the chemical preservation of tissue samples. Especially the processes which create the feeling of consciousness may be very similar in all human beings, because all people have this feeling and can easily communicate about it. However, it is obvious that cryonic suspension preserves a higher degree of identity. Cryonic suspension and later nanotechnological repair will probably preserve the complete information content of the brain. Personally, I have made arrangements for cryonic suspension. But I am very worried about the fact that the cryonics organizations are small and that there are very many possibilities for a failure. Chemical preservation and permafrost storage offer in my opinion also the chance of preserving the complete information content of the brain, but the number of people who support this option is even much smaller than the number of people who support cryonics. Therefore I have collected comprehensive information about myself. The advantage of this way is that information as well as chemically preserved tissue samples can be preserved in several places in several copies. That reduces the chance of a failure. If you would like to discuss any of these ideas, please write to Klaus Reinhard, Bergenring 49, 24109 Kiel, Germany. References: Douglas R. Hofstadter: Godel, Escher, Bach; 1979, p369 Ralph C. Merkle, Hans Moravec The Immortalist, August 1988 Marvin Minsky: Interview on West German TV, 13 September, 1988 PS. You might ask whether a random resurrection could effect the same as a revival with the help of information or even a successful cryonic suspension. However this scenario is too unlikely. Our universe is too small for that, and there are no proofs that there are other universes. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=3367