Ethan's absolute hatred and disgust towards AI that can mimic and duplicate human mannerism because the Entity tricked and almost lured him to his demise by using Benji's voice, someone he'd trust and trail after blindly to the end of the world
VS
Ethan having to stop every now and then as he goes on with his days because he's so used to being reminded by Luther about things he'd often forget, little things that'd slipped from his mind as his head injuries and age finally catch up with him, slowly realizing that perhaps one day, although he did promise that he'll continue living while dragging Benji along with him no matter what, now isn't so sure if he wants to actually live long enough to forget the sound of his old friends voice












