Revolutions in semiconductor device miniaturization, bioelectronics,
and applied neural control technologies are enabling scientists to create
machine-assisted minds, science fiction's “cyborgs.” In a
paper published in 1999, we sought to draw attention to the advances in
prosthetic devices, to the myriad of artificial implants, and to the early
developments of this technology in cochlear and retinal implants. Our
concern, then and now, was to draw attention to the ethical issues arising
from these innovations. Since that time, breakthroughs have occurred at a
breathtaking pace. Scientists, researchers, and engineers using differing
methodologies are pursuing the possibilities of direct interfaces between
brains and machines. Technological innovations as such are neither good
nor evil; it is the uses devised for them that create moral implications.
As there can be ethical problems inherent in the proper human uses of
technologies and because brain chips are a very likely future technology,
it is prudent to formulate policies and regulations that will mitigate
their ill effects before the technologies are widespread. Unlike genetic
technologies, which have received widespread scrutiny within the
scientific community, national governments, and international forums,
brain–machine interfaces have received little social or ethical
scrutiny. However, the potential of this technology to change and
significantly affect humans is potentially far greater than that of
genetic enhancements, because genetic enhancements are inherently limited
by biology and the single location of an individual, whereas hybrids of
human and machine are not so restricted. Today, intense interest is
focused on the development of drugs to enhance memory; yet, these drugs
merely promise an improvement of normal memory, not the encyclopedic
recall of a computer-enhanced mind combined with the ability to share
information at a distance. The potential of brain chips for transforming
humanity are astounding. This paper describes advances in hybrid
brain–machine interfaces, offers some likely hypotheses concerning
future developments, reflects on the implications of combining cloning and
transplanted brain chips, and suggests some potential methods of
regulating these technologies.We are
grateful to Prof. Michah D. Hester for helpful comments on this
article.