Westworld: 31 WTF Moments From Season 1
24. Delores Goes Off-Script
This moment gives hints at two big things: one, the hosts' ability to go off-storyline, and two, the multiple timeline theory.
It wraps them up in one violent scene, as Dolores is about to be raped as part of the story (nice bunch, that Delos lot). However, she appears to remember what happens, but at first can't pull the trigger.
Then she hears the voice again, visualises her attacker as the Man in Black, and is able to pull the trigger. And with that, Dolores is very much off-script.