Continuity mistake: When Travis is attacked by Barris at the end of the experiment, he "catches" the knife and his hand is seriously injured, becoming covered in blood. However, when the red light begins to go off and Travis raises his hands to his head, both of them are clean and uninjured. (01:25:25 - 01:26:45)
Archaleta: Justice is what keeps us safe as a society. Ordered law.
Travis: Justice is what starts wars. And eye for and eye for an eye. It takes a turning of the cheek for this species to evolve.
Archaleta: Ah, so you're the one who knows what it's going to take for this society to evolve.
Travis: I'm just regurgitating what people have been saying for a long time.