Factfulness

Imagine giving a multiple-choice quiz on global data to university professors, journalists, diplomats, and bankers. That is exactly what Hans Rosling did for decades, asking basic questions about extreme poverty, childhood vaccination, life expectancy, and female literacy. The results were disconcerting: in most audiences, participants scored worse than chimpanzees picking answers at random.

If you let monkeys choose bananas marked with the letters of the test options, they will get about thirty-three percent of the answers right on three-option questions. Highly educated experts regularly scored around five or ten percent. Society's problem is not neutral ignorance, but the confident possession of outdated views, driven by dramatic instincts and news outlets that thrive on perpetual shock.

The first major bias identified in the book is the gap instinct, fueled by binary thinking. We have a habit of slicing the world into two opposing blocs: rich versus poor, developed nations versus developing nations. When we examine real demographic data, we discover that this supposed chasm no longer exists, because the vast majority of the planet's population is concentrated right in the middle.

To replace this outdated model, Rosling proposes organizing humanity into four economic tiers based on daily individual income. On Level 1, around eight hundred million people live in extreme poverty on less than two dollars a day. On Level 2, earning between two and eight dollars a day, are three billion people who can now buy shoes, cooking pots, and perhaps a bicycle to get to work.

On Level 3, earning between eight and thirty-two dollars a day, live two billion individuals with steady electricity and a refrigerator. On Level 4, making more than thirty-two dollars a day, live about one billion people who have cars and hot running water. Nearly all of humanity resides on Levels 2 and 3, undoing the simplistic illusion of an Earth split between abundance and absolute deprivation.

If you ask any commuter at a bus stop whether the world is getting better or worse, the answer will almost certainly be that everything is headed off a cliff. The negativity instinct makes us notice what goes wrong much more easily than what improves. This happens for three reasons: romantic nostalgia for the past, media coverage focused on pain, and our moral reluctance to celebrate progress while misery still exists.

Rosling teaches a precious methodological lesson: a social situation can be bad and, at the same time, getting much better. These two concepts do not cancel each other out. Average life expectancy on the planet, which hovered around thirty years at the start of the twentieth century, now exceeds seventy years of age. Access to basic vaccines at local public health clinics has transformed child survival across the globe. When biased sampling by the press selects only daily tragedies, it hides the quiet progress built through immense collective effort.