Frustrated by hours stuck in traffic, Elon Musk proposed building underground tunnels as a cleaner, quieter, and safer alternative to surface roads and flying cars and launched "The Boring Company" in 2016. Since then, the company has developed a test tunnel and launched the Vegas Loop, aiming to expand further. While it’s still a private company and not publicly traded, it has raised over $675 million in funding. The boring company is valued at around $5.7 billion.