Technology

Arcologies

The Japanese government built the first two arcologies in the mid 21st century. The Shimizu Mega-City Pyramid and Sky City 1000 pioneered the use of carbon nanotubes and robotic labor to build structures capable of housing an entire city of nearly 1,000,000 people in an area with a footprint of only a few kilometers.

Following the massive west coast earthquakes of 2032, the United States government and several private corporations worked in concert to create the Los Angeles, San Francisco, and Seattle arcologies to replace the largely-destroyed metro areas they once occupied.

Artificial Intelligence

True, independent Artificial Intelligence, as far as the public knows, does not exist. Limited slave AIs have existed for a number of years, however, used primarily in conjunction with robotics technology and computer security systems.

Cybernetics

Cybernetics, the science and industry of replacing organic components with mechanical ones, came into wide use largely due to military and government research, then slowly expanded into civilian use. As refinements made cybernetics less bulky and more life-like, its use extended beyond mere limb replacement and into human enhancement. The final step towards what has become common cybernetics in the current day was the invention of nano-scale brownian motors powered by the body's own bioelectricity.

Full body cybernetics are still largely the purview of the military and special police organizations. When legal civilian use does occur, it's usually among the wealthy as the result of severe injuries or illness or, in very rare cases, fashion. Of course, full-body, military grade cybernetics also see use among private security and criminal organizations.

Robotics

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Future Imperfect