Richard Feynman, K.Eric Drexler and Richard Smalley, the three biggies of Nanotechnology have struggled to bring us to a level we are at, in the field of Nanotech. However Bill Joy's article "Why the Future doesn't need us", in the Wired magazine in year 2000, shocked Nanotech world. It is an amazing example of what a writer's "pen" can do!
Feynman's vision of nanomachines(nanoscale assembly robots) building at atomic level and molecular manufacturing proposed by Drexler, or virus killers in your blood cells, takes you in exciting world of sci-fi, but controlling atomic interactions in real world have problems of their own. The much-hyped advantages of nanotechnology have led to inflated expectations, which will almost certainly lead to disappointment and disillusionment. However things appear promising for future. If I was doing this blog in year 2020, I would not hesitate selecting Nanotechnology as my business of choice.