<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Jan 29, 2011, at 12:49 PM, Keith Henson wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">I don't know if cracking can be solved or not. It's partly an<br>engineering problem and partly an economic problem.</span></blockquote><br></div><div>It would seem to me that cracking in the brain would not be a very serious problem because it would be pretty obvious where the 2 sides of the crack used to be and how they should be lined-up to be repaired. Astronomically more devastating would be any micro-flow in the freezing organ that undergoes turbulence, because untangling a chaotic process and figuring out how things were arranged before the freezing induced turbulence occurred would be very hard, practically impossible, even for a Jupiter Brain. </div><div><br></div><div> John K Clark </div><br></body></html>