Elon Musk is by far the world's richest person, boasting a total net worth of more than $1.3 trillion. The Tesla (TSLA) and SpaceX (SPCX) CEO also has many other hugely impressive achievements, including nearly single-handedly kicking off the electric vehicle (EV) revolution, founding the world's leading satellite-launch company, starting a trend of over-the-air software updates in vehicles, and making Tesla one of the top firms in the self-driving space.
On the other hand, though, Musk has an extensive history of overpromising and underdelivering when it comes to long-term goals. After the recent SpaceX initial public offering (IPO), investors should keep that history in mind. Musk believes that SpaceX could generate $1 trillion of revenue in 2030, and added that he'd be “surprised if revenue were not greater than $1 trillion in 2031.”