The Dunning-Kruger Effect: Why Incompetent People Think They're Experts

The Dunning-Kruger Effect: Why Incompetent People Think They're Experts

Author: Moms and Mysteries Podcast March 26, 2026 Duration: 49:32
Have you ever met someone who was terrible at something but thought they were a genius? This week, we explore the Dunning-Kruger effect, a cognitive bias where people with low ability at a task overestimate their own competence. We start with the case that inspired the research: McArthur Wheeler, a man who robbed two banks after covering his face in lemon juice, believing it would make him invisible to security cameras. His baffling confidence led psychologists David Dunning and Justin Kruger to study this strange phenomenon. We then look at how this bias plays out in the world of true crime, from the comically inept “Hillbilly Heist” orchestrated by the Loomis Fargo crew, to the chilling case of Caleb Flynn, a former American Idol contestant accused of murdering his wife and staging a break-in. We also examine the tragic story of Lauren Giddings and the law student who thought he could commit the perfect murder, only to have his plan unravel on live television. Finally, we share the incredible story of Brett Johnson, a cybercriminal who went from the Secret Service's Most Wanted list to a respected FBI consultant, demonstrating the rare journey from the “peak of Mount Stupid” to true self-awareness. Thank you to this week's sponsors: See why more than 3 million families have chosen K12 – find a K12 Powered School near you today! Go to K12.com/MOMS to learn more. Right now, go to Quince.com/moms for free shipping and 365-day returns. That's a full year to wear it and love it. Now available in Canada, too. New episodes every Tuesday and Thursday! Follow us on Instagram: @momsandmysteries Join our Patreon: patreon.com/momsandmysteriespodcast Visit our website: momsandmysteries.com Learn more about your ad choices. Visit megaphone.fm/adchoices

Between school drop-offs and grocery runs, Mandy and Melissa found a shared obsession with the unanswered questions lurking in the shadows. Moms and Mysteries: A True Crime Podcast is the result: a conversation that feels like sitting at a kitchen table with two friends who are deeply curious about the human condition. Their perspective is uniquely grounded, examining each story not just for its shock value, but for the societal threads and personal tragedies that weave it together. You’ll hear them discuss everything from the strangely specific weirdness of a Florida crime to a globally known cold case, always with a blend of empathy and a dash of necessary, dark humor. This isn't a clinical report; it's a twice-weekly deep dive fueled by a lifelong fascination with mysteries, both big and small. The tone is warm, the research is thorough, and the conversation is the kind you get hooked on. New episodes of this true crime podcast arrive every Tuesday and Thursday, ready to be your companion during a commute or while folding laundry. They’ve been asking "how did this happen?" since they were kids, and now they’re pulling up a chair for you to join that ongoing, compelling discussion.
Author: Language: en-us Episodes: 100

Moms and Mysteries: A True Crime Podcast
Podcast Episodes
Justice for Megan Trussell: An Unsolved Death [not-audio_url] [/not-audio_url]

Duration: 30:01
An 18-year-old college freshman, full of creativity and ambition, walked out of her dorm room one cold February night in 2024 and never made it back. Megan Trussell was a gifted artist and bright student at Arapahoe Comm…
Dr. Sam Sheppard: The Trial That Gripped America [not-audio_url] [/not-audio_url]

Duration: 1:03:39
In 1954, Dr. Sam Sheppard's pregnant wife Marilyn was brutally murdered in their Ohio home. Sheppard claimed a "bushy-haired intruder" attacked them both, but prosecutors believed he was the killer. The sensational trial…
[Serial Killer] Belle Gunness: America's Most Deadly Widow [not-audio_url] [/not-audio_url]

Duration: 34:15
Belle Gunness was a Norwegian immigrant who turned her Indiana farm into a graveyard. Between 1884 and 1908, she lured dozens of suitors through "lonely hearts" advertisements, promising marriage and a life on her prospe…
Charles Ponzi: The Original Pyramid Scheme [not-audio_url] [/not-audio_url]

Duration: 39:37
Before Bernie Madoff, before cryptocurrency scams, there was Charles Ponzi—the man who gave his name to one of history's most infamous fraud schemes. In 1920, the Italian immigrant promised investors a 50% return in just…
[Wrongful Conviction] Michael Politte: Framed for Murder [not-audio_url] [/not-audio_url]

Duration: 52:45
In 1998, 14-year-old Michael Politte woke up to find his Missouri home engulfed in flames and his mother dead inside. Within hours, investigators decided Michael was the killer, despite a complete lack of physical eviden…
[Crossover] Barefoot Bandit + The Knife Podcast [not-audio_url] [/not-audio_url]

Duration: 51:09
At 19 years old, Colton Harris-Moore became one of America's most wanted fugitives—and a folk hero to some. Dubbed the "Barefoot Bandit" because he often committed crimes without shoes, Colton stole cars, boats, and even…
[Unsolved] The Televangelist Mail Bombings [not-audio_url] [/not-audio_url]

Duration: 33:46
In 1990, two of America's most prominent televangelists became targets of a mysterious mail bombing campaign. John Osteen of Lakewood Church in Houston and Pat Robertson of the Christian Broadcasting Network both receive…
[Mystery] Lake Lanier: Georgia's Cursed Waters [not-audio_url] [/not-audio_url]

Duration: 36:44
Lake Lanier, Georgia's largest lake, is one of the deadliest bodies of water in America—with over 700 deaths since its creation in 1956. But the lake's dark history goes deeper than tragic accidents. Built by flooding en…
[Unsolved] Justice for Eric Nealms: Driveway Murder [not-audio_url] [/not-audio_url]

Duration: 38:35
It was just before sunrise on a quiet September morning in Phoenix City, Alabama, when 30-year-old Eric Nealms stepped outside, heading to work like he did every morning. But someone was already waiting. Within moments o…