re: How did that person in your class become rich?

Not my class , but a guy a bit ahead of me dropped out and ran away from home. Joined the navy. A few years later started a company that now has over 100 patents. I’m assuming a few are tied in with the military and defense contracts. Somehow his wealth just about doubled during covid. He’s now a billionaire with a B. I never heard of the guy until I read an article about him.