This is a well-written article that provides good insight into the inner world of scientists, including how they keep hope alive. I worked at the World Bank for 13 years and now am an independent agent, working for some of the largest causes on our planet. Government is not the answer to today's problems. Neither are most corporations. Enlightened private sector initiatives working hand-in-hand with communities, activists and scientists will take us farther faster. Hope is an important issue. The mindset we have when dealing with large, intractable issues heavily influences our ability to innovate, think creatively, find solutions, persist in the face of overwhelming odds, and work together. Our mindset is both our greatest handicap (depression and rigidity) and our greatest asset (aspiration and breakthrough orientation). Thanks for sharing.