Nanotechnology is the new flying car. Thirty years from now there will be wonderful advances in fields that either do not exist currently, or nobody could have imagined would progress in the direction they did. I predict that power consumption will continue to increase, devices will continue to get smaller and smaller, and that nanotech will be common place. However it will be nothing like that. Nanotech will be more along the lines of what it already is today custom built wonder compounds. I compare it to the flying car because that was an impractical piece of technology that everyone assumed would be common place just around the corner. The preveling thought is that nanotech is the next wonder segment of technology that is going to single-handedly remake our lives. Maybe somewhere far in the future with a better understanding of the way human bodies work we will be able to prolong the aging process and eventualy reverse it, but I doubt fully it will come in as short a time as 20 years.
Not that I don't hope it will. I will still be alive and would love to get my hands on a near immortality shot.