Because, despite the promises of nanotechnology possibilities, the main questions remains, will we accept nanotechnology and it's applications?
In the medical world, nanotechnology has been a very popular discussion for long and the reasons are obvious. If we can cure people, all without operations or other destructive methods, costs can be lowered and the quality of life will improve. Nanotechnology will make it possible to attack cancer or other mutated or foreign cells, without destroying healthy cells, we can all see that nanotechnology will have huge effects on health care in general.
Very impressive applications of nanotechnology can be found in
Nano medicine, Volume I: Basic Capabilities (
available via the web). It talks, for example, about dermal displays. Displays being implanted in our epidermal that will monitor our body functions. The dermal display is wired with 3 mln pixel robots made up from photons. Just for inspiration, see the video below, created by Gina Miller, it is the ultimate form of ambient intelligence, technology that not only integrates with the environments but with the human itself.
See also:
Dermal Display