Using Technology to Enhance Humans
Roland Piquepaille writes "It's a well-known fact that technology can improve our lives. For example, we can reach anyone and anywhere with our cellphones. And people who can't walk after an accident now can have smart prosthesis to help them. But what about designing our children on a computer or having a chip inside our brain to answer our email messages? Are we ready for such a future? In 'Robo-quandary,' the Milwaukee Journal Sentinel reports that many researchers are working on the subject. And as a professor of neuroscience said, "We can grow neurons on silicone plates; we can make the blind see; the deaf hear; we can read minds." So will all we become cyborgs one day?"
http://en.wikipedia.org/wiki/Transcranial_magnetic _stimulation
It's still very much in it's infancy, but this is the future of the human/silicon interface. No physical device to cause problems with biological systems. No need to "upgrade" the hardware in your head. And of course, it's not permanent.
I agree with your point that we shouldn't be accessible 24/7, but I also think that the next technological leap forward is going to be the result of increasing the data transfer rate between the brain and non-biological systems.