This talk is 4 years old already. I only saw today. Still relevant.
Elon Musk discusses his new project digging tunnels under LA, the latest from Tesla and SpaceX and his motivation for building a future on Mars in conversati...
Elon Musk: The future we're building -- and boring | TED
www.youtube.comElon Musk discusses his new project digging tunnels under LA, the latest from Tesla and SpaceX and his motivation for building a future on Mars in conversati...