X-Message-Number: 4713 From: Brian Wowk <> Date: Thu, 3 Aug 1995 16:03:43 -0500 Subject: Reply to Eugen re Uploading Eugen Leitl responded to my trivialization of the "rewarming problem" by suggesting that I was trivializing the whole cryo-injury repair problem. Far from it. The repair problem is extremely complex, and I do not dismiss it casually. However, Anders Sandberg specifically asked how to handle the rewarming problem assuming *repairs had already been completed* in the deep frozen state. I stand by my assertion that rewarming *a repaired brain* is a trivial problem. Suitably prepared tissue samples can already be recovered from low subzero temperatures. This is living proof that low-temperature biological states exist from which recovery is possible using only simple (but rapid) rewarming. (Rapid rewarming of large tissue masses can be achieved by either rf heating or in-situ exothermic reactions.) The initial repair is the difficult problem, but as I said Anders' question assumed that this had already been done. This leaves the question of whether cryorepair is harder than scanning and uploading. I would very much enjoy a debate of this question, however I am not able to participate in this debate right now. I promise to return to the subject when I have more time. ---Brian Wowk Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=4713