Arcologies are enormous habitats of extremely high human population density, providing production and consumption of all human needs within the hyperstruture.
Seasteads are permanent dwellings at sea, outside the territory claimed by the government of any standing nation.
Solar sail is a photo-sensitive sheet kilometers across which uses the radiation pressure of starlight to propel a spaceship.
Utility fog is an airborne collection of tiny robots that can replicate a physical structure.
Embodied avatars are remotely controlled androids or robotic human surrogates, directly connected to the brain of the host.
Skin-embedded screens are sub-cutaneous digital displays.
Immersion technology (holodeck) creates the complete sensory perception of the physical self being surrounded by an interactive artificial environment.
An exocortex is an artificial external information processing system that would augment a brain’s biological high-level cognitive processes.