Compassion fatigue has an antidote. True, we can become weary of the seemingly infinite number of problems plaguing our fellow humans. But that same interconnectedness allows us do more than just learn about what's happening around the world. We can learn from it.

So, a movie star, a yogi and a vet walk into a bar. What happens? They change the world. No joke.

Changemakers has been a leading platform for social innovators to grow and scale their ideas for a decade. This time, the very nature of the innovations and the competition theme itself enhanced the process, speeding up the rate of collaborative changemaking even more.

While we celebrate the fact that two billion people now have access to the Internet's opportunities for speaking out, five billion others are still waiting for their chance to be heard.

When health innovation expert David Aylward is asked if the developing world can learn from the U.S. healthcare system, his answer is an emphatic yes -- "They should do the opposite!"