See http://arxiv.org/ftp/arxiv/papers/1305/1305.3913.pdf Comments? Regards, Dan See my SF short story "Residue": http://www.amazon.com/Residue-ebook/dp/B00BS3T0RM/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.extropy.org/pipermail/extropy-chat/attachments/20130522/04c886ad/attachment.html>