>I'm still not so sure that the Man in Black is human.
>
>Perhaps he is a robot that was "reassigned" a new role but
>remembers his more sinister role he has played in the past and
>also wants to find his maker? The hole in this theory is that
>he was shot and didn't die. However, we did see the Milk
>Bandit get shot and not die.

After the steam ended on HBO Now, there was a Behind the Scenes feature for that Ed Harris/James Mardsen scene. On the feature, James Mardsen said Ed Harris' character was human while he was a robot. Unless Mardsen is trolling and/or misinforming the audience willing or unwillingly, it appears The Man In Black isn't a robot. Your theory is an interesting one though and it almost makes me wish I didn't see that Behind the Scenes clip.