Stephen Dubner, one-half of the Freakonomics team, knows that tackling big issues can big problems, and that’s often why big issues (think: poverty) don’t get solved. Dubner’s thought? Think small. Don’t try to solve everything; solve one thing.
It’s much less complicated, you’ll have easier access to the data that you’ll need. Most importantly, you will preserve one of your most precious resources: optimism.
He gives details in the following short video.