A decade ago, Sal Khan envisioned using technology to tailor education to individual and community needs.
Square and Twitter Co-Founder Jack Dorsey views payments not only as an exchange of value, but also as a form of communication. Although everyone can relate to money, says Dorsey, very little thought has gone into design and user experience for payment transactions. Dorsey shares his desire to build a cohesive point-of-sale system that is far more useful for merchants and customers.