Some of the largest Internet apps in the world (hundreds of millions of users) asked us for a way to cost-effectively scale to their user base. We built stateless accounts to make it a reality. Everyone in the world can have an @Aptos account. Orderless transactions allow any account to send out highly parallel txns, rather than relying on ordered transactions per account. Simpler to manage a 1-to-n mapping. Makes live easy for builders. Innovation to scale the global trading engine to ridiculous scale.