Yup. It was especially during his time in Berlin when he went into full beast mode, because he also managed to do those two Iggy Pop records in between. The man's schedule at that time was crazy: In summer 1976, he and Iggy record The Idiot. Then, he immediately starts working on the Low album (which is released even before The Idiot is out). Then he goes on tour as Iggy's keyboarder. Then, back to the studio to record Lust for Life, followed immediately by the session for "Heroes". That makes four all time great albums, all released in 1977, recorded within 14 months. This is absolute madness.