There are actual communication systems being built to enable eye surgeons to get inside the eye, and vascular surgeons to get inside the arteries. You could see a social reaction in which people would want to regulate this technology because they are threatened by it, and thereby cause a lot of harm. There are several scenarios that are happening at once. The other scenario is that the Japanese are going for this in a big way.
Howard RheingoldYou can't have an industrial revolution, you can't have democracies, you can't have populations who can govern themselves until you have literacy. The printing press simply unlocked literacy.
Howard RheingoldBack in the really early days, the men went out hunting, the women stayed home with the kids, and would hold the kid in one arm against the heart, so that's the left, and with the right arm they would throw. And it turns out you cannot make that calculation in real time. You have to have an algorithm set up. So these brain mechanisms evolved in order to do that, and when they evolved, the thing is that where there is a useful capability it often adapts to places it wasn't evolved for.
Howard Rheingold