Elon Musk is a billionaire entrepreneur and businessman. He is the CEO and founder of several companies including Tesla (electric cars), SpaceX (space exploration), Neuralink (neural interface technology) and The Boring Company (infrastructure and tunnel construction). He is also a co-founder of PayPal. Musk is known for his ambitious goals such as colonizing Mars, reducing global warming through sustainable energy, and creating a high-speed transportation system called the Hyperloop. He has faced controversy in his business and personal life, but continues to be a prominent figure in technology and innovation.