Current ethos in Silicon Valley is that if you build a website that people keep coming back to and is changing the lives of millions, you can eventually make money.

If a student takes a Stanford computer class and a Princeton business class, it shows they are motivated and have skills. We know it has helped employees get better jobs.

Online education, then, can serve two goals. For students lucky enough to have access to great teachers, blended learning can mean even better outcomes at the same or lower cost. And for the millions here and abroad who lack access to good, in-person education, online learning can open doors that would otherwise remain closed.

As a society, we can and should invest more money in education.