The term “posthumanism” is usually used to describe “succession by non-biological entities”, for precisely the reason that it’s a distinct concept, and a distinct philosophy, from “mere” transhumanism.
(For instance, I endorse transhumanism, but am not at all enthusiastic about posthumanism. I don’t really have any interested in being “succeeded” by anything.)
The term “posthumanism” is usually used to describe “succession by non-biological entities”, for precisely the reason that it’s a distinct concept, and a distinct philosophy, from “mere” transhumanism.
(For instance, I endorse transhumanism, but am not at all enthusiastic about posthumanism. I don’t really have any interested in being “succeeded” by anything.)
That makes sense, I just often see these ideas conflated in popular discourse.