Elon Musk: The mind behind Tesla, SpaceX, SolarCity ...

Elon Musk discusses the importance of sustainable transport and energy, highlighting Tesla's innovations in electric cars and the development of a Supercharging network. He also talks about SolarCity's solar power solutions and SpaceX's goal of making rockets reusable to reduce space travel costs. Musk shares his approach to innovation, emphasizing first principles thinking and system-level design.

What new insight or understanding did you gain from this video?