Vlad Tenev says that after he moved to the United States in 1997, Bulgaria had the world's highest inflation rate, at approximately 2,000% annualized.

“And then I would, I would come to the US and there were just bananas everywhere, right? But they weren't as good. Um, and so, yeah. And, and even after I moved, in 1997, Bulgaria had the unfortunate distinction of having the number one inflation rate in the world.”

“It was something like 2000% annualized. So they were just adding zeros to the currency every couple of months. And so from that point, I just developed kind of a understanding of money.”