: Alien-designed disks implanted at the base of the skull that store a person's "Digital Human Soul" (DHS).
: The ultra-wealthy (named after Methuselah) who live for centuries by constantly upgrading their sleeves and backing up their consciousness to satellites. The Plot: A Murder Mystery Altered Carbon - Season 1 ...
: Human or synthetic bodies used as vessels for stacks. Physical death is merely a "sleeving" transition unless the stack itself is destroyed ("Real Death"). : Alien-designed disks implanted at the base of