Fifty years ago, in his most famous work, the prolific intellectual Carlo Cipolla argued that stupid people, as a group, are “much more powerful than the mafia, or the military industrial complex.”

Today, as we witness one of the dumbest wars in history unraveling in Iran, an inept health and human services secretary working to bring back measles and polio, a Republican Party wherein only 20 percent view the January 6 attack on the U.S. Capitol as a violent insurrection but 71 percent deny Joe Biden won the 2020 election, and an administration that refuses to properly regulate AI and crypto industries that threaten the economic well-being and safety of all, Cipolla’s contention is as apt now as when he first proposed it in The Basic Laws of Human Stupidity, in 1976—an era when the country, and indeed the world, was similarly roiled by sociopolitical rage and seemed on the brink of a catastrophe.

An Italian economic historian and UC-Berkeley professor who’d seen fascism firsthand and was writing in the wake of the Vietnam War, Cipolla wanted to determine how advanced societies commit truly stupid acts. Originally crafted for his friends, but selling over half a million copies once published, his treatise lies somewhere between satire and serious scholarship, involving a bit of humor and speculation while also applying the laws and language of scientific inquiry and a valid argumentative style. As he wrote in the introduction:

Let me point out at this juncture that most emphatically this little book is neither a product of cynicism nor an exercise in defeatism—no more than a book on microbiology is. The following pages are in fact the result of a constructive effort to detect, know, and thus possibly neutralize one of the most powerful dark forces that hinder the growth of human welfare and happiness.

Cipolla divided people into four groups: the helpless, whose actions harm themselves but benefit others; the intelligent, whose actions benefit themselves and others; the bandits, who enrich themselves while harming others; and the stupid, whose actions harm others while producing no benefit to themselves. This latter group is Cipolla’s main concern. “No matter how high are one’s estimates of human stupidity,” he wrote, “one is repeatedly and recurrently startled by the fact that a) people whom one had once judged rational and intelligent turn out to be unashamedly stupid; b) day after day, with unceasing monotony, one is harassed in one’s activities by stupid individuals who appear suddenly and unexpectedly in the most inconvenient places and at the most improbable moments.”