What made Figma's CEO stand out to one of his first investors

Martin Mignot, the first investor in Deliveroo, became a millionaire before turning 30. Now, as a partner at Index Ventures—the firm behind early bets on Figma, Scale AI, and Revolut—he exclusively shares with Fortune the two strategies Gen Z can use to build wealth fast: become a founder or get in early at the right startup. He also offers advice to spot the next unicorn.