NOTE: Instead of physically traveling through space, human consciousness is transferred through the cosmos, sort of like a radio signal, via technology called Needlecasting, and downloaded on the other end into a waiting body. Of course, this requires an initial physical journey of some kind to colonize new worlds and build some infrastructure, but subsequent travel is basically instantaneous. But the scale of time has shifted with all this new technology. For example, when we meet Kovacs, he just spent the past 250 years in digital storage without a physical body, as a prison sentence. Suddenly, a 100-year space journey to colonize a new world doesn't seem that big a deal.