Activity in the brain's neocortex is tightly controlled by inhibitory neurons shown here which prevent epilepsy. (Credit: Blue Brain Project; Ecole Polytechnique Federale de Lausanne)From Science Daily:
ScienceDaily (Sep. 4, 2009) — A model that replicates the functions of the human brain is feasible in 10 years according to neuroscientist Professor Henry Markram of the Brain Mind Institute in Switzerland. "I absolutely believe it is technically and biologically possible. The only uncertainty is financial. It is an extremely expensive project and not all is yet secured."
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My Comment: If you duplicate a brain .... will it think?