In the summer of 1969, America did the extraordinary. Let’s do it again.
Optimism, as defined by economist Jeffrey Sachs, is more than just a translucent, faraway wish. It means having bold goals and acting on them—even if you have no plan or existing knowledge of how you'll get there. The US was once good at this: In May 1961, President Kennedy stood before Congress and announced that the US would land a man on the moon and bring him back safely before the decade was out. In the summer of 1969, that mission was achieved. If American politicians, scientists, engineers and the public could unite for the space race, then the same is unquestionably possible for the urgent humanistic causes of poverty, inequality, and curbing global warming, which will create millions of climate refugees this century. Optimism doesn't just require vision and determination—it needs a deadline, as JFK showed. By 2030, let's mobilize our optimism to cut poverty in half in America, and make a decisive move to renewable energy.