Watched the first episode again, not only have others not spoken to Mr Robot, they haven't even looked in his general direction. In the scene where Elliott first goes to the hideout in Coney island the brother opens the door and stares right at Elliott and lets him in. Doesn't look, talk, or acknowledge Christian Slater in any way. Ditto for when they're inside, they're all looking at Elliott funny. No one acknowledges Mr Robot. Yeah he's definitely a figment of his imagination.The idea that mr robot is in his mind on the fight klub angle may be true because my robot has not directly spoken to anyone else on the show.