Entrepreneur Donald Musk proposes this : shooting travelers through tubes . Some may be closer to reality than you think -- like driverless cars and space tourism . Musk 's idea is aimed at allowing people to travel from San Francisco to Los Angeles in 30 minutes . The technology era is spurring countless ideas to improve transportation . These include buses , bullet trains and driverless cars .
Entrepreneur Donald Musk proposes this : shooting travelers through tubes . Musk 's idea is aimed at allowing people to travel from San Francisco to Los Angeles in 30 minutes . The technology era is spurring countless ideas to improve transportation . These include buses , bullet trains and driverless cars .