Not just angry complaints, but constructive solutions
World peace would save the global economy $7 trillion a year. Becoming more peaceful translates into economic gains because less money needs to be spent on security and can be invested instead to make the country more prosperous.
One of the great killers has been defeated: smallpox. The disease was responsible for the deaths of 300-500 million people in the 20th century. But now it has been defeated.
The process of cumulative innovation has doubled life span, cut child mortality by three-quarters, and multiplied per capita income nine-fold world-wide in little more than a century.