X-Message-Number: 18831 From: Date: Mon, 18 Mar 2002 12:19:03 EST Subject: recovery from cryonics state --part1_12a.e020d62.29c77b87_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I know the classical answer to that question is: Nanotechnologies will do that. It looks to me as nothing more than a particular religion based on science jargon. I have said before that my favored option was uploading. Indeed, the information processing requested will be at hand in 30 years or so and only a "brain reader" needs a particular effort to be built. The brain reader may be conceived as two systems: A magnetic resonance imaging (MRI) system using polarised helium 3 to map the brain at the cell level and : A Quantum Non Demolition (QND) X-ray scanner able to go down to atomic scale in sensitive zones, that is, near synaptic buttons. Neither system need to thaw a body, so the process keeps all elements in place for a more advances nano repair process. UP loaded brains can interact with the world with a robot body or a direct link with a biological body. In that later case I assume that body is an animal one for legal reasons. I have said all of that before, now I think we can go a step beyond: Recent progres in the domain of stem cells may be the key to build back a full body. Our body is a matrix of structural elements excreted by cells and used as a scafolding by all the cells. The classical idea is to repair all cells, here my new idea is to use only the structural elements and recover only some stem cells. These cells could be grown outside the body and then injected in the defrosted body. They would colonize the structure, clean off the death original cells and take their place. That would work for the body, unfortunately, the brain content would be erazed in the process. This may be a solution if the information content is storred in a computer or a similar device. We need then "simply" a brain monitor able to build a two way link between the new empty brain and the old one . The main point here is that current technology gives a fairly precise roadmap of what could be a cryonics recovery process. On a practical side, the more immediate progress this technology suggest is to extract from corpses some cell extract, may be a part of the bone marrow, and keep them in a recoverable state. Full body or even organ reversible cryoprotection may be some time in the future but isolated cell could be protected right now. With them, body recovery could be only 5 - 10 years in the future. Yvan Bozzonetti. --part1_12a.e020d62.29c77b87_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=18831