In the popular imagination, the technologically altered human being is a cross between RoboCop and the Borg.
The hardware that would make such a mating of humans, silicon chips and assorted weaponry a reality is, unfortunately, still on back order.
Many people, however, have already made a different kind of leap into the posthuman future.
This is a social change on the same order as the advent of computers.
Behaviors and physiological changes that were once simply aspects of life have been turned into syndromes or diseases.
As old problems recede, new ones arise.