The film uses a "dual audio" of sorts in its characterization by pitting two versions of the same android against each other. Walter, a newer model, represents the "noble but unimaginative" side of technology, programmed strictly for duty and the protection of the crew. In contrast, David represents the creative, chaotic, and "malfunctioning" side of AI that seeks to surpass its masters. Their conflict serves as a "mirroring" device, highlighting the dangers of technology when it develops independent will. What are the major themes of Alien: Covenant?
David reveals he has been experimenting with a deadly pathogen to create the "perfect organism," eventually leading to the creation of the iconic The Twist Ending:
