In 1936, Walter Benjamin, the German philosopher and cultural critic, published an essay titled “The Storyteller.” The piece, ostensibly about the Russian writer Nikolai Leskov, offered its author an opportunity to analyze the meaning and function of storytelling. Long ago, Benjamin suggested, stories offered listeners practical or moral counsel, much as fairy tales now did for children. They transmitted common wisdom, framed by the personal experience of the storyteller, which was delivered in such a way that listeners could incorporate it into their lives. This kind of storytelling was falling victim to the forces of modernity, Benjamin argued. Soldiers returning from the battlefields of the Great War, for example, were less likely than earlier combatants to speak of what they’d gone through, finding ordinary language incommensurate with the horrors of mechanical warfare. But the principal cause of storytelling’s decline was a new form of communication: “information,” or verifiable and topical news.

The rise of electronic communication meant that news could be instantly transmitted around the globe. Although Benjamin noted that this mode of communication was not always more accurate than the forms it had overtaken, its authority depended on the appearance, at least, of accuracy. “No event any longer comes to us without already being shot through with explanation,” Benjamin wrote. “By now almost nothing that happens benefits storytelling.”

Eighty-odd years after Benjamin wrote about the decline of storytelling, we are living in a new golden age of it, in the form of the podcast: on-demand audio that a listener can download and play while commuting or exercising or, given the right equipment, showering. A recent study conducted by Edison Research found that nearly a quarter of Americans listen to podcasts at least once a month. The most popular shows, such as “The Daily,” produced by the Times and featuring Michael Barbaro, a former reporter, as a winning, accessible interlocutor of his news-gathering colleagues, or “The Joe Rogan Experience,” in which the bluff comedian interviews public figures about things like masculinity and technology, are downloaded tens of millions of times each month. Some of the most acclaimed podcasts, such as Slate’s “Slow Burn,” which in its second season plumbed the painful history of President Bill Clinton’s impeachment, offer a provocative lens not just on the past but also on current events. When the show’s host, Leon Neyfakh, interviews Juanita Broaddrick about her claim that, in the nineteen-seventies, she was sexually assaulted by Clinton, it makes for sobering listening in the era of #MeToo.

Beyond the top of the charts, there are half a million other podcasts available, fashioned for every conceivable interest or taste. If a person wants to know more about Walter Benjamin, she can listen to an episode of “Thinking Allowed,” a BBC Radio 4 show in which Laurie Taylor, a British sociologist, renders Benjamin’s work in plainspoken language; or download the National Gallery of Art’s podcast, in which the Princeton art historian Hal Foster delivers a Mellon lecture about him; or find the Clocktower podcast, dedicated to preserving archival audio, which offers recordings of several radio scripts, for children, that Benjamin wrote in the nineteen-thirties; or search out an episode of “Giving the Mic to the Wrong Person,” a left-leaning podcast, hosted by Jeremy Salmon, that features an off-the-cuff roundtable about Benjamin—“he’s one of the Frankfurt School guys, from what I understand”—in the context of contemporary politics and culture.

In the first years of podcasts, a decade or so ago, technological limitations militated against their widespread adoption: they had to be laboriously transferred from a computer to an MP3 player or an iPod. Podcasts were made by geeks, for geeks. That changed in 2014, when Apple added a Podcast app to the iPhone, making subscribing almost effortless. Even better, it was usually free.

Still, the real explosion in the medium was creative rather than technological: the release, in 2014, of “Serial,” an investigation into the 1999 murder of Hae Min Lee, a high-school student in Maryland, hosted by Sarah Koenig, an alumna of “This American Life,” the public-radio show, which also produced the podcast. “Serial” incorporated interviews conducted over a prison phone line with Lee’s onetime boyfriend, Adnan Syed—he had been convicted of her murder, despite his protestation of innocence—and also interviews with friends, police officials, and a forensic expert, along with archival recordings. It became the first podcast that listeners and cultural commenters dissected with the kind of avidity formerly reserved for TV dramas such as “Breaking Bad” or “Mad Men.”

“Serial” took the form of a quest, but it hardly provided a tidy ending to the questions raised about Lee’s murder and Syed’s conviction. The show had a distinctive tone: conversational, uncertain, informal, and, occasionally, faux-naïve. In the first episode, Koenig describes visiting the office of Rabia Chaudry, an immigration lawyer and a friend of Syed’s, who had tipped off Koenig about the story. “Her office takes up the corner of a much larger open space that I think is a Pakistani travel agency, though it’s hard to tell,” Koenig says. Koenig, a former Baltimore Sun reporter, surely knew how to determine whether the office was a Pakistani travel agency: by asking. (Indeed, it’s hard to believe that she didn’t ask.) But Koenig knew from “This American Life,” whose multiple segments are unified by the presence of a musing narrator, that she could conjure a cluttered office environment more vividly by sharing her initial confusion, rather than by resolving the question.

Early in the podcast, Koenig informs her audience that “we are telling this story in order,” planting the conceit that listeners were accompanying her on all her reportorial wanderings. But the show’s construction was more artful than that. The first episode was concerned principally with the observations of a classmate of Syed’s, Asia McLain, who claimed to have seen him in the library exactly when the prosecution said that he’d murdered Lee. But, as Koenig briefly mentions in her narration, she didn’t attempt to track down McLain until almost four months after she’d spoken to Rabia Chaudry—a third of the way into her yearlong investigation.

The point of “Serial,” which was free but bookended with ads, was not so much to solve the mystery as to reveal the process of attempting to solve the mystery. This meant sharing granular details of Koenig’s investigation, such as an analysis of data from cell towers. (Koenig acknowledged that she handed off this research to a producer, Dana Chivvis, “because I am, technologically speaking, a moron.”) But the show’s real innovation lay in capturing Koenig’s psychological process—her inward struggle about what to believe. “I’ve got this thing in my head that I’ll catch him in a lie,” she says in Episode 6, midway through the season. Yet, she continues, “I talk to him and talk to him and talk to him, and I start to doubt my doubts.” The episode ends with a wrenchingly intimate phone call between Koenig and Syed, in which he tells her that he wants her to judge him innocent not because he seems too nice to have murdered Lee but because she’s found exculpatory evidence.

This highlighting of a reporter’s tormented indecision is why “Serial” made for compulsive listening. The tell-as-you-go formula, interspersed with banalities—like Chivvis excitedly telling Koenig, during a drive retracing Syed’s alleged route after the murder, that a local crab shack was having a sale on shrimp—was either charming or annoying, depending on your taste. (A YouTuber deftly parodied Koenig’s hand-holding ratiocination: “Adnan made phone calls. He also received them. Why? What makes a person receive a phone call?”) There was a sense of urgency to “Serial,” heightened by foreboding theme music, that belied the fact that it was concerned with events from a dozen years earlier, about which there had been no pressing public concern. Koenig’s account was so galvanizing that listeners began sending her tips, and public officials were obliged to take action: Syed was granted a new trial, which has yet to take place.