For bringing the Larry O'Brien championship trophy to Dallas in 2011, Nowitzki would have gone down in sports history as one of the greatest and most beloved players to ever set foot in the town.

And now, he's the first-ever person to hit the $400 billion ... on Tuesday showed Musk $140 billion ahead of the world's second richest person, Amazon founder Jeff Bezos, who's worth $244 billion.

So how do you hire the best people in the world? You can post lazy Craigslist ... For hiring developers: Ever use some software you were really impressed with? That's your person.