How to Tell When Someone Is Lying
Part-Time Genius
iHeartPodcasts and Kaleidoscope
4.5 • 2K Ratings
🗓️ 12 May 2026
⏱️ 37 minutes
🧾️ Download transcript
Summary
From ancient Chinese lie detection methods involving a mouthful of rice, to the clever ways toddlers and birds stretch the truth, to the surprisingly honest way that Charles Ponzi got his start in business, Will and Mango have a whole lot to say about lying (honestly!).
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This episode originally aired on January 25, 2025.
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Transcript
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| 0:00.0 | This is an I-Heart podcast. Guaranteed Human. You're listening to Part-Time Genius, |
| 0:09.7 | a production of kaleidoscope and I-heart radio. Guess what, Mango? What's that, Will? |
| 0:18.1 | So I came across this study, and you know I love a good study, Mango, but this was from |
| 0:23.1 | researchers at the University of Wisconsin lacrosse. |
| 0:26.1 | And you know I love University of Wisconsin lacrosse. |
| 0:29.2 | And this is a pretty weird one. |
| 0:31.0 | So here's what they did. |
| 0:32.1 | They asked 632 people to document every single lie they told over the course of three months. |
| 0:40.5 | That is incredible. So what did they find out? |
| 0:43.5 | Well, among other things, they discovered that the number one reason people lied was to avoid others. |
| 0:49.3 | Oh, I mean, that kind of makes sense to me. |
| 0:51.3 | Yeah, it does. And the second most common reason people lied was for jokes or |
| 0:55.0 | pranks, which also makes sense. Like the time you told me, the CEO of Vegemite was a huge fan of the show |
| 1:00.9 | and Wanda Senda's a lifetime supply of Vegemite. That's a good example of a lie. But from what |
| 1:07.6 | you're describing, these are fairly like harmless lies, right? |
| 1:10.9 | So is the lesson that lying isn't necessarily so bad? |
| 1:15.0 | I do like that that's your conclusion. |
| 1:17.1 | I mean, a lesson isn't quite that simple. |
| 1:20.0 | Like, it's a highly complex form of social interaction that can serve many different purposes. |
| 1:25.6 | And so lies can range from lighthearted and funny to, of course, malicious to downright |
| 1:30.1 | dangerous, depending on the intention behind them. |
| 1:33.2 | And the cultural context, too. |
... |
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