by MARK CHANGIZI
Where are we humans going, as a species? If science fiction is any guide, we will genetically evolve like in X-Men, become genetically engineered as in Gattaca, or become cybernetically enhanced like General Grievous in Star Wars.
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And machine-enhancement is part of our world even today, manifesting in the smartphones and desktop computers most of us rely on each day. Such devices will continue to further empower us in the future, but serious hardware additions to our brains will not be forthcoming until we figure out how to build human-level artificial intelligences (and meld them to our neurons), something that will require cracking the mind’s deepest mysteries. I have argued that we’re centuries or more away from that.
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There is, however, another avenue for human evolution, one mostly unappreciated in both science and fiction. It is this unheralded mechanism that will usher in the next stage of human, giving future people exquisite powers we do not currently possess, powers worthy of natural selection itself. And, importantly, it doesn’t require us to transform into cyborgs or bio-engineered lab rats. It merely relies on our natural bodies and brains functioning as they have for millions of years.
This mystery mechanism of human transformation is neuronal recycling, coined by neuroscientist Stanislas Dehaene, wherein the brain’s innate capabilities are harnessed for altogether novel functions.
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