David Letterman Killed Disco, But Can He Save My Class?

In one fell swoop, David Letterman killed disco. Not just the music, but the entire polyester empire of rhinestone smarm and sweat-drenched earnestness. Letterman wasn’t seduced by mirror balls. He walked on stage with his arctic deadpan, and with irony as his weapon, executed disco in front of a live studio audience.

I was just starting college then—a lifelong bodybuilder and Olympic weightlifter who could hoist a barbell but couldn’t hoist a personality. Muscles, yes. Presence, no.

I didn’t just want to be David Letterman. I wanted to graft his sardonic detachment onto the icy brilliance of Vladimir Nabokov—a cocktail of late-night sarcasm and literary menace. I didn’t know what I wanted to be, exactly, only that it had to involve confidence, storytelling, performance—something that allowed me to “give a presentation.”

By accident, I stumbled into teaching. In 1987, the chancellor of Humanities at Merritt College launched a pilot program to deliver classes at Skyline High School in Oakland, and none of the full-time faculty wanted the job. My neighbor, Felix Elizalde, whose kids went to school with me, threw me a lifeline. One gig snowballed into another, and soon I was a full-time college writing instructor.

That was thirty-eight years ago. For most of them, I would have told you the hardest part of the job was grading essays—an endless swamp of half-baked theses and misplaced commas. But now, in 2025, grading essays is only the second hardest task. The first? Something educators and administrators alike love to call “student engagement.”

I don’t know if it’s the black hole of smartphones or the simple math of age—I’m nearly forty-five years older than my students. Probably both. Either way, I can no longer stand in front of a classroom, channel my inner Letterman, and spin stories until the room vibrates with attention. Instead, I stand beside a giant screen plastered with Google Slides. My students are “visual learners,” raised on swipes and emojis.

I could go back to the Letterman Method, earn some laughs, maybe even spike engagement for a few minutes. But at what cost? The Google Slides aren’t as funny as my comedy routine, but they do hit the sacred “core concepts” and “Student Learning Outcomes.”

I’ve become a ghost haunting the pedagogy manuals. Occasionally I slip, crack a joke, earn some chuckles, channel my younger self—but then I reel myself back in, because the templates for counterarguments and rebuttals won’t teach themselves.

The students aren’t fooled. A few of the candid ones smirk: “Don’t worry, McMahon, ChatGPT will do it for us.”

And so, as I enter my mid-sixties, I keep trying to stay aligned with the modern world. Yet every step forward feels like five steps backward, as if I’m not teaching writing anymore but rehearsing my own obsolescence.