He didn't mean that literally. It's a tongue in cheek way of saying "when you're a 23 year old and you think you've mastered the markets, you don't think about wealth preservation."
Original quote:
"When you have mastered the market at 23 years old, and you're up 6000% in less than a year, you don't think about wealth preservation."
Original quote: "When you have mastered the market at 23 years old, and you're up 6000% in less than a year, you don't think about wealth preservation."