Time Abyss: The members of the assorted naturally or artificially immortal species of the modern day still haven’t been around long enough for this – although the Empire contains plenty of people who are older than all Earth’s modern nations, and at least a few who are older than human civilization period. With time, they’ll get there.
A few Living Relics dug out of the archives play it straight, but generally lack continuity.
This is a companion discussion topic for the original entry at https://eldraeverse.com/2016/01/02/trope-a-day-time-abyss