Consider that we are already replacing
body parts with machines. Retinal microchips, though not on the
market yet, are proving that vision can be restored. Bionic
prostheses for legs, arms, and hands are becoming increasingly
sophisticated, operated by neural control. Even neuroprosthetics,
which can provide a motor, sensory, or cognitive ability that might
be lacking or damaged are already in full use—tens of thousands of
people already have cochlear implants for hearing loss. These
implants are surgically installed with a direct neural connection
that is run by tiny computers. Soon, advanced genetic and neural
therapies will be available to enhance our senses and our strength.
Biological engineering and neurobiology are already making huge
advances that have replicated the functions of many of our biological
systems electronically and mechanically. Elon Musk was not far off
with his prediction that neural lacing might be the next step for
human enhancement.
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