Elon Musk spoke at TED2017 and discussed some of his visions for the future. He acknowledged challenges with flying cars being noisy but was optimistic about the development of hyperloop transportation, suggesting one could get from Westwood to LAX airport in 5-6 minutes, faster than a bullet train. Musk also emphasized that for rocket reusability to be truly effective, turnarounds must be as rapid and complete as possible, like an aircraft. The document also included proposals for a vehicle sensor system that could detect external motion and hazards and react to protect users.