MEMS. (Micro electromechanical systems; mechanical systems -- as opposed
to electronics -- that you can make using a chip fab.) Time scale: 1-5
years; it's already working in the lab stage and commercial applications
will be coming to a street near YOU real soon now. Impact: Not quite as
big as nanotechnology, but grossly underestimated. (Imagine: your
friendly neighbourhood police department has robot drones with high-
definition low-light TV cameras so that it can fly round suspicious
neighbourhoods looking for drug deals. Meanwhile, the drug dealers are
tooling up with labs capable of producing etorphine by the milligram --
that's all you need -- that fit in an innocuous-looking PCMCIA card in
a laptop. And their guns shoot guided bullets. Oh, and did I mention
the 20-watt turbogenerator a centimetre in diameter and two millimetres
thick that ARPA is paying the development costs of?)
This one seems to have blind-sided even the SF writers who went hog-wild
over nanotech a decade ago, but it's real and it's here today the way
personal computers were 'here today' in 1975.
-- Charlie