Tesla and SpaceX CEO Elon Musk has concurred with a bold prediction that every middle-class American household will have a domestic robot within seven years. What Happened: The prediction was made on the All-In Podcast, featuring Chamath Palihapitiya, Jason Calacanis, David Sacks, and David Friedberg. The hosts discussed the future of domestic robots, with Calacanis predicting that every middle-class household in America would have a $1000 per month robot within seven years. Friedberg, on the other hand, suggested that there is more money to be made in industrial applications than in consumer …