Bill Gates shares on Wired his plan to improve the world.

This realization led me to rethink some of my assumptions about how the world improves. I am a devout fan of capitalism. It is the best system ever devised for making self-interest serve the wider interest. This system is responsible for many of the great advances that have improved the lives of billions—from airplanes to air-conditioning to computers.

But capitalism alone can’t address the needs of the very poor. This means market-driven innovation can actually widen the gap between rich and poor. I saw firsthand just how wide that gap was when I visited a slum in Durban, South Africa, in 2009. Seeing the open-pit latrine there was a humbling reminder of just how much I take modern plumbing for granted. Meanwhile, 2.5 billion people worldwide don’t have access to proper sanitation, a problem that contributes to the deaths of 1.5 million children a year.

The article is a very good read. Take the time to go through it. And then sit down and reflect upon yourself.