2017 was probably the very best year in the long history of humanity. A smaller share of the world's people were hungry, impoverished or illiterate than at any time before. A smaller proportion of children died than ever before. The proportion disfigured by leprosy, blinded by diseases like trachoma or suffering from other ailments also fell. We journalists focus on bad news - we cover planes that crash, not those that take off - but the backdrop of global progress may be the most important development in our lifetime. Every day, the number of people around the world living in extreme poverty (less than about $2 a day) goes down by 217,000, according to ... Max Roser, an Oxford University economist who runs a website called Our World in Data. Every day, 325,000 more people gain access to electricity. And 300,000 more gain access to clean drinking water. As recently as the 1960s, a majority of humans had always been illiterate and lived in extreme poverty. Now fewer than 15 percent are illiterate, and fewer than 10 percent live in extreme poverty. In another 15 years, illiteracy and extreme poverty will be mostly gone. After thousands of generations, they are pretty much disappearing on our watch. Steven Pinker, the Harvard psychology professor, explores the gains in a terrific book due out next month, "Enlightenment Now," in which he recounts the progress across a broad array of metrics, from health to wars, the environment to happiness, equal rights to quality of life.