Aptos Labs CEO Mo Shaikh believes that a universal identity application, faster and cheaper transactions, and innovation in the decentralized finance (DeFi) sector could attract a billion new crypto users. A universal identity application would allow users to access their crypto assets more easily, making crypto more accessible to new users. Faster and cheaper transactions would also make crypto more appealing to a wider range of people. Finally, innovation in the DeFi sector could offer new users more innovative and efficient financial solutions. If these three developments occur, Shaikh believes that crypto could become more mainstream and attract a billion new users in the coming years.