Remarkable.
I was thinking the same thing. That's some pretty sizable savings or disposable income for ANY 23-year old.
He may also have raised funds from his parents and friends. These folks are very entrepreneurial. Not everyone succeeds, but an outsized number do place bets on building their own businesses. It makes many (failed entrepreneurs) good employees, as they understand the bottom line. It's hard to figure out where this entrepreneurial bug comes from, given that Imperial Chinese history is the history of state-owned monopolies in many major industries. Maybe it's to do with the well-known East Asian (Oriental) proclivity for gambling. Most lose, but so many gamble that there are a lot of winners.