Theory

What if they were NOT singular and each other had it's own memories and personality? Listen, if you ever get cloned, and your original version go watch tv and the clone goes to a club, you two aren't one anymore, because the first version would not get the memories from the clone that went to the club. How does this apply to the movie? Well. The companion that made the substance emphasizes that they are singular, but the movie says the opposite. Sue makes fun and mocks Elizabeth on the tv show, and then when Elizabeth saw the show she was so mad at Sue and was acting like she didn't knew what she said in the interview. Elizabeth cooks and eat so much food without a care, but when she switch, Sue gets so mad at Elizabeth.. That wouldn't be right because if they share the same conscious and are one, why would she be mad at something that she herself made? I think that maybe the company is lying to the consumers think they are one, maybe because that's a experiment from the government. Remember this is just a theory i'm not saying it's true.