Still looking for the hand/chip story. I'll find it, but until then here is a story that is a bit unsettling taken from the following link.
http://goonawarra.ac3.com.au/apla/conf99_5.html#3.6.2A few prominent neurophysiologists are currently toying with the idea of creating a 'secondary brain' for newborn babies74. The idea involves implanting at birth a microchip into a baby's head. The plan is that the chip would be able to record every experience the brain has as it occurs and store the same information as the natural brain. The chip could be viewed as a backup - a back-up brain. The idea put forward is that when the human dies the chip would be removed and plugged into a new-born baby, enabling its owner to have the advantage of experience gained from the former 'life'. Mention is made of the possibility of the technology of human cloning and the way in which combining such a process with the transplanted chip could virtually give an individual the possibility of living forever.
Cochrane's comments tend to be similar to Moravec's in that he is discussing backing up on a machine, rather than transplanting a chip containing the results of such a backup into a new born baby. He argues that we might be able to transfer mental awareness and capacity to a computer, pointing out that as we age and die, the rich information base acquired over a lifetime of reacting to environmental experience is lost. His prediction is that it will be possible in the future to transfer a biologically developed brain to an electronically manufactured brain, to transfer the stuff of minds into a silicon form to achieve a 'carbon-silicon mix'75
