A marathon documentary that drags its subject

Alex Gibney’s new four‑hour documentary on Elon Musk tries to cover the billionaire’s many ventures, but the runtime feels excessive. Ars Technica calls the film “overlong” and notes that it offers little new insight …

The length forces viewers to sit through repetitive anecdotes. The film splits into two distinct tones, as if two directors were at the helm. One half feels like a conventional biography; the other wanders into specul…

Bits, bytes, and the confusion that costs engineers time