Elon Musk: Entrepreneur behind Tesla, SpaceX, and PayPal.
Founded Zip2 and sold for $300 million, co-founded PayPal sold for $1.5 billion.
SpaceX aims to make space travel accessible with Falcon rockets and Dragon spacecraft.
CEO of Tesla Motors, known for innovative electric cars like the Roadster and Model S.
Proposed Hyperloop, a high-speed transportation system.
Philanthropic efforts focus on renewable energy and signed the Giving Pledge.
Criticized for setbacks, Musk's vision drives innovation and sustainability.