Remember that YouTuber MrBeast who’s always doing crazy things to give away money? Well, Jimmy Donaldson, his real name, became a billionaire without inheriting anything. That’s pretty rare indeed.

At just 27 years old, he made it onto the list of the youngest billionaires in the world. His fortune is estimated at 1 billion dollars, according to celebrity wealth tracking experts. Something that’s not at all common for someone his age.

What makes MrBeast’s story different is precisely that: most young billionaires inherit their money from their families. He didn’t. He built everything from scratch with YouTube, sponsorships, and that viral business model. Now the eighth youngest billionaire in the world, but the first to truly do it all on his own at this age.

It’s the kind of thing that shows how the internet has changed the rules of the game for making real money.