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
[Florida Files] Dan Markel Part 2: The Adelson Web [not-audio_url] [/not-audio_url]

Duration: 1:00:58
The murder of Florida State University law professor Dan Markel in 2014 seemed like a random act of violence—until investigators uncovered a murder-for-hire plot allegedly orchestrated by his ex-wife's wealthy family. In…
[Florida Files] Dan Markel Part 1: A Professor's Death [not-audio_url] [/not-audio_url]

Duration: 56:36
On July 18, 2014, Florida State University law professor Dan Markel was shot in the head in his own driveway in Tallahassee. What initially appeared to be a random act of violence soon revealed itself to be something far…
[Heist] The Art of the Steal: Passion Crimes [not-audio_url] [/not-audio_url]

Duration: 47:29
What happens when a thief isn't after cash, but the priceless cultural history locked away in our most secure institutions? This week, we dive into the world of intellectual crimes—a string of baffling thefts motivated b…
[Unsolved] The Real Laura Palmer: Hazel Drew's Murder [not-audio_url] [/not-audio_url]

Duration: 46:04
In 1908, the body of 20-year-old Hazel Drew was found floating in a pond in upstate New York. Her mysterious death captivated the nation and remained unsolved for over a century. Decades later, "Twin Peaks" creator David…
False Confessions: When Innocent People Talk [not-audio_url] [/not-audio_url]

Duration: 46:46
Why would an innocent person confess to a crime they didn't commit? The answer is more complex—and more common—than you might think. Through five shocking cases, we explore the psychological tactics used during interroga…
[Serial Killer] Daniel Printz: The Handyman Serial Killer [not-audio_url] [/not-audio_url]

Duration: 31:18
Daniel Printz was a trusted handyman in his Florida community—until investigators discovered he was systematically targeting and murdering elderly clients. This case exposes the vulnerability of senior citizens to predat…
The Body Snatcher: Michael Mastromarino- Revisit [not-audio_url] [/not-audio_url]

Duration: 59:23
Michael Mastromarino was a successful dentist who fell from grace and found a new, horrifying career: stealing body parts from corpses and selling them to unsuspecting medical companies. His illegal tissue-harvesting ope…
[Heist] The Bad Grandpas: The Hatton Garden Heist [not-audio_url] [/not-audio_url]

Duration: 45:10
In 2015, a group of elderly criminals—average age 63—pulled off one of the biggest jewelry heists in British history, stealing an estimated £14 million from the Hatton Garden Safe Deposit Company. Using old-school tactic…
[Unsolved] The Hall-Mills Murders: Forbidden Love [not-audio_url] [/not-audio_url]

Duration: 26:44
In 1922, the bodies of Reverend Edward Hall and choir singer Eleanor Mills were found under a crab apple tree in New Jersey, arranged in a macabre tableau. Their love letters were scattered around them, exposing their af…
[Unsolved] The Missing Millionaire: Captain Loewenstein [not-audio_url] [/not-audio_url]

Duration: 42:47
In 1928, Belgian millionaire Alfred Loewenstein was flying over the English Channel in his private plane when he mysteriously vanished mid-flight. His body was later found in the sea, but the circumstances of his death r…