For writer Stephen Cave, author of the new book Immortality, digital immortality does not refer to the "legacy" we have left on our Facebook pages. Cave's book explores the quest to live for ever and how – he believes – it has been the driving force behind civilisations,
Which beggers the question do all civilisations chase this prize ?
ie Is ET post biological ?
"So your brain is scanned and your essence uploaded into a digital form of bits and bytes, and this whole brain emulation can be saved in a computer's memory banks ready to be brought back to life as an avatar in a virtual world like Second Life, or even in the body of an artificially intelligent robot that is a replica of who we were."
For Dr Stuart Armstrong, the rise of the idea of digital immortality is due to the realisation that this time – perhaps – we actually have the key to immortality in our hands. Dr Armstrong is research fellow at the Future of Humanity Institute, University of Oxford.
"Technology is now advancing faster and faster and we understand it a lot better because we built it ourselves. So the problems that digital immortality is facing are merely engineering problems – albeit complicated and difficult ones – that could be solved within the decade if we decided to set up a scheme on the scale of the Manhattan Project."
In particular, he feels that "scanning is the critical problem" and that if you "spent stupid amounts of cash then within a decade many of the limitations of scanning, such as its resolution, could be solved".
Dr Randal A. Koene, though, is determined to take digital immortality from the pages of books like Cave's and turn it into reality. Koene is founder of the non-profit Carbon Copies Project in California, which is tasked with creating a networking community of scientists to advance digital immortality – "although I prefer to talk about substrate-independent minds, as digital immortality is too much about how long you live, not what you can do with it".
And for Koene it is very much "you", there being a "continuity of self" in the same way that "the person you are today is still the same person you were when you were age five".
"This isn't science fiction, either, this is closer to science fact," he argues. Carbon Copies "is working to create a road map to substrate independence by pulling together all the research that is going on, identify where the gaps are and then what we need to do to plug it.
For Koene, human societies have faced these kinds of problems many times before. What matters more, he believes, is that digital immortality is the next stage of human evolution as it will "allow us as a species to have the flexibility to survive the process of natural selection that every species has to face", whether on this planet or another.
Will scientists ever discover the secret of immortality? - Science - News - The Independent