The political theorist Hannah Arendt once wrote that the most successful totalitarian leaders of the 20th century instilled in their followers “a mixture of gullibility and cynicism.” When they were lied to, they chose to believe it. When a lie was debunked, they claimed they’d known all along—and would then “admire the leaders for their superior tactical cleverness.” Over time, Arendt wrote, the onslaught of propaganda conditioned people to “believe everything and nothing, think that everything was possible and that nothing was true.”

Once you internalize the possibility that you’re being manipulated by some hidden hand, nothing can be trusted. Every dissenting voice on Twitter becomes a Russian bot, every uncomfortable headline a false flag, every political development part of an ever-deepening conspiracy. By the time the information ecosystem collapses under the weight of all this cynicism, you’re too vigilant to notice that the disinformationists have won.

In his book This Is Not Propaganda, Peter Pomerantsev, a researcher at the London School of Economics, writes about a young Filipino political consultant he calls “P.” In college, P had studied the “Little Albert experiment,” in which scientists conditioned a young child to fear furry animals by exposing him to loud noises every time he encountered a white lab rat. The experiment gave P an idea. He created a series of Facebook groups for Filipinos to discuss what was going on in their communities. Once the groups got big enough—about 100,000 members—he began posting local crime stories, and instructed his employees to leave comments falsely tying the grisly headlines to drug cartels. The pages lit up with frightened chatter. Rumors swirled; conspiracy theories metastasized. To many, all crimes became drug crimes.