@ZorokiHanuke Being made of materials we deem non alive is more or less the point of being not alive.
Machine's can be ''alive'' (Working independently, moving on it's own or acting like it's alive) but they are not ''ALIVE'' in the sense of humans, trees, animals etc are.
Don't bring religion in to this cause that's just plain asking for a fight even if you don't mean it.
A machine is programmed to do certain tasks which they perform cause of their programming parameters.
And long as they have that part in them, they are not truly ''alive''.
However were they to have a human, animal, alien sentient life form injected in to them, then they would very much be alive and a living organism but not a new one.
They would be an extension of the old lifeform which is inhabiting the body or vice versa.
A good argument for CASTS would be Nanomachines or any kind of living organism that renews, creates indendepently new things on the CAST to grow much like any life form we have accepted.
So honestly, CASTs are a lifeform since they have a humanoid sentient organism inside of them and are not purely machines.
The line is drawn between: Created pure machines VS Sentient living organism machines (Transplanted human in to machine)