Everything Bad Is Good for You

Steven Johnson advances a single, counterintuitive thesis: Over the past thirty years, popular culture has grown steadily more complex and intellectually demanding, not less. Against a chorus of commentators who decry the dumbing down of mass entertainment, Johnson argues that video games, television dramas, reality shows, the Internet, and even Hollywood films exercise our cognitive faculties in ways earlier generations of popular culture never did. He calls this upward trend the "Sleeper Curve," after a scene in Woody Allen's film Sleeper in which scientists from the future are astonished that people in the twentieth century failed to appreciate the nutritional value of cream pies and hot fudge.

Johnson opens with a personal anecdote. As a ten-year-old, he became obsessed with APBA, a dice-and-cards baseball simulation whose rules were extraordinarily intricate, requiring players to internalize multi-layered lookup charts and statistical systems. His dissatisfaction with APBA's limitations drove him through progressively more complex simulations and eventually to designing his own games. He once considered this a sign of unusual precociousness, but he now sees it as a harbinger: The kind of systems-oriented thinking he practiced alone as a child has become a mainstream component of mass entertainment. The book's central reorientation follows from this insight. Instead of judging media by the moral messages it conveys, Johnson proposes evaluating it as a cognitive workout, assessing how viewers and players are thinking rather than what they are thinking about.

The first major section examines video games. Johnson opens with a thought experiment: Imagine a world in which games existed for centuries before books, and cultural authorities reacted with alarm to the new "reading" craze, criticizing it as isolating, passive, and dangerously linear. The parody mirrors the actual criticisms leveled at games. While acknowledging the genuine virtues of reading, Johnson contends that the actual experience of gameplay is misrepresented in mainstream coverage. Games are extremely difficult, involve sustained frustration, and demand delayed gratification. The massive market for walk-throughs and guidebooks (the Grand Theft Auto guide alone sold over 1.6 million copies) is evidence of genuine complexity, since no other entertainment form requires supplementary guides simply to be understood. Drawing on neuroscience, Johnson explains that games tap into the brain's dopamine-driven reward circuitry, what neuroscientist Jaak Panksepp calls the "seeking" system. But the true cognitive virtue of games lies not in their content, which is often juvenile, but in the mental processes they demand. He identifies two key modes: "probing," the process of exploring a game's hidden rules through trial and error in what amounts to practicing the scientific method; and "telescoping," the mental labor of managing nested, hierarchical objectives simultaneously, constructing proper sequences rather than merely juggling unrelated tasks.

Johnson then turns to television, tracing a progressive increase in narrative complexity over three decades. He distinguishes between shows that are merely intelligent, featuring smart characters and witty dialogue, and shows that force the viewer to be intelligent by requiring analysis and gap-filling. He identifies three elements of this shift. The first is multiple threading: The practice of weaving together numerous simultaneous plotlines evolved from single-plot shows like Dragnet through the pioneering multi-threaded police drama Hill Street Blues (1981), which borrowed the structural template of soap operas, to The Sopranos, which routinely follows a dozen distinct threads per episode. The second is the reduction of "flashing arrows," or narrative signposts. Johnson contrasts Hill Street Blues's roll call sequences, which explicitly introduced plotlines, with The West Wing's pilot, which deliberately withholds the information that its characters work at the White House. He analyzes a scene from ER in which a crucial plot twist is conveyed through a single two-letter line that the viewer must connect to a passing remark from 15 minutes earlier. The third element is the density of social networks: Comparing a 1970s Dallas episode to a season-one episode of 24, Johnson shows that modern dramas require viewers to track webs of relationships comparable in complexity to a Jane Austen novel.

Johnson extends this analysis to sitcoms like Seinfeld and The Simpsons, whose jokes reward external knowledge and repeated viewing, and to reality television, which he argues exercises the brain's capacity for reading facial expressions and mapping interpersonal dynamics, skills researchers measure through concepts like emotional intelligence and AQ (autism quotient). A briefer section addresses the Internet, which Johnson argues challenges the mind through participatory engagement, the mastery of complex interfaces, and the facilitation of social connection. On film, his case is more qualified. At the top of the box office, epics like the Lord of the Rings trilogy require audiences to track nearly three times as many characters as Star Wars, and children's films show the most pronounced growth, with Finding Nemo involving nearly 20 distinct personalities compared to Bambi's three. A growing "mind-bender" microgenre, including Memento and Eternal Sunshine of the Spotless Mind, employs formerly avant-garde techniques to commercial success. But the Sleeper Curve levels off in film because features are limited to two or three hours, while television dramas unfold over 100 hours and games average about 40, allowing far more room for complexity to develop.

In Part Two, Johnson asks whether empirical evidence supports the claim that popular culture is making us smarter. He introduces the Flynn Effect, named after James Flynn, an American philosopher and civil-rights activist who discovered that IQ scores across all demographic groups in the United States had been rising dramatically, an average of 13.8 points over 46 years. The trend had gone unnoticed because the testing establishment routinely renormalized exams to maintain a median score of 100. Crucially, the gains are most pronounced on tests measuring "fluid" intelligence, or abstract problem-solving and pattern recognition assessed through visual puzzles like the Raven Progressive Matrices, rather than on tests of classroom-taught skills. This pattern, Johnson argues, is precisely what the Sleeper Curve would predict: Popular culture trains visual, pattern-based reasoning but not rote academic knowledge. He rules out alternative explanations including improved nutrition, better education, and increased test familiarity. Flynn himself is skeptical, arguing that real intelligence gains should produce a "cultural renaissance." Johnson counters that Flynn looks at the wrong end of the bell curve: The gains are strongest among average people, whose improvements manifest not in scientific breakthroughs but in the everyday mastery of complex media, technology, and narrative forms.

Johnson identifies three forces driving the Sleeper Curve. The first is economic: The shift from single-airing revenue to aftermarket revenue (syndication and DVD sales) rewards content that sustains interest across multiple viewings, replacing the 1970s philosophy of "Least Objectionable Programming" with what Johnson calls the "Most Repeatable Programming" model. The second is technological: Recording technologies (VCR, DVD, TiVo) function as "repetition engines" enabling close readings, while Internet fan communities raise the threshold of complexity creators can deploy. Media theorist Marshall McLuhan's concept of "electric speed," the accelerating introduction of new platforms, trains the mind to adapt to adaptation itself. The third is neurological: The brain has dedicated systems that seek out new challenges, and the 30-year history of video games growing steadily more difficult proves that consumers demand greater challenge, not less.

Johnson acknowledges costs and limits. Sustained engagement with long-form sequential argument is a specific cognitive skill that shorter digital text does not adequately replicate. On media violence, he notes that the decade of greatest fictional violence in American households coincided with the most dramatic drop in real-world violent crime in U.S. history. For parents, he advises evaluating media by cognitive engagement rather than content alone, while advocating moderation and a balanced media diet. In the afterword, Johnson reflects on the book's reception, clarifying that the upward trend results from a combination of digital-age technologies, public-sector investment, and market incentives rather than from unfettered capitalism alone, and reiterating that the book is not a justification for unlimited screen time but an attempt to provide a working theory of popular culture's cognitive benefits.