News
Economy

How much does this cow weigh? (Classic)

April 10, 2024 5:30 PM |Updated: April 14, 2024 12:00 AM

By:

David Kestenbaum,
Jacob Goldstein,
Nadia Wilson, and
Bryant Urstadt

Listen

Listening...

/

This episode originally ran in 2015.

About one hundred years ago, a scientist and statistician named Francis Galston came upon an opportunity to test how well regular people were at answering a question. He was at a fair where lots of people were guessing the weight of an ox, so he decided to take the average of all their guesses and compare it to the correct answer.

What he found shocked him. The average of their guesses was almost exactly accurate. The crowd was off by just one pound.

This eerie phenomenon—this idea that the crowd is right—drives everything from the stock market to the price of orange juice.

So, we decided to test it for ourselves. We asked Planet Money listeners to guess the weight of a cow.

Spoiler: You can see the results here.

This episode was hosted by David Kestenbaum and Jacob Goldstein. It was produced by Nadia Wilson and edited by Bryant Urstadt. Alex Goldmark is Planet Money's executive producer.

Help support Planet Money and get bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

Always free at these links: Apple Podcasts, Spotify, Google Podcasts, the NPR app or anywhere you get podcasts.

Find more Planet Money: Facebook / Instagram / TikTok / Our weekly Newsletter.

Music: FirstCom - "La Vie Paris" and "Happy Is As Happy Does."

Tags: Planet Money Series: Planet Money

Related News

Technology

How the FBI's fake cell phone company put criminals into real jail cells

There is a constant arms race between law enforcement and criminals, especially when it comes to technology. For years, law enforcement has been frustrated with encrypted messaging apps, like Signal and Telegram. And law enforcement has been even more frustrated by encrypted phones, specifically designed to thwart authorities from snooping.

But in 2018, in a story that seems like it's straight out of a spy novel, the FBI was approached with an offer: Would they like to get into the encrypted cell phone business? What if they could convince criminals to use their phones to plan and document their crimes — all while the FBI was secretly watching? It could be an unprecedented peek into the criminal underground.

To pull off this massive sting operation, the FBI needed to design a cell phone that criminals wanted to use and adopt. Their mission: to make a tech platform for the criminal underworld. And in many ways, the FBI's journey was filled with all the hallmarks of many Silicon Valley start-ups.

On this show, we talk with journalist Joseph Cox, who wrote a new book about the FBI's cell phone business, called Dark Wire. And we hear from the federal prosecutor who became an unlikely tech company founder.

Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

May 31, 2024

|

By:

Nick Fountain,
Jess Jiang,
and 1 more

Junkman Jon Rolston has spent the last two decades clearing out houses and offices of their junk. In that time, he's become a kind of trash savant.

Economy

The junkyard economist

On today's episode, we ride through the streets of San Francisco with a long-time junkman, Jon Rolston.

Jon has spent the last two decades clearing out houses and offices of their junk. He's found all sorts of items: a life-time supply of toilet paper, gold rings, $20,000 in cash. Over the years, he's developed a keen eye for what has value and what might sell. He's become a kind of trash savant.

As we ride with Jon, he shows us the whole ecosystem of how our reusable trash gets dealt with — from metals (ferrous and non-ferrous) to tires to cardboard. And we see how our junk can sometimes get a second chance at life.

If you can understand the junk market like Jon, you can understand dozens of trends in our economy.

This episode was hosted by Erika Beras and James Sneed, and produced by James Sneed with help from Emma Peaslee. It was edited by Jess Jiang. Engineering by Josh Newell. It was fact-checked by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

May 24, 2024

|

By:

Erika Beras,
James Sneed,
and 1 more

Technology

The hack that almost broke the internet

Last month, the world narrowly avoided a cyberattack of stunning ambition. The targets were some of the most important computers on the planet. Computers that power the internet. Computers used by banks and airlines and even the military.

What these computers had in common was that they all relied on open source software.

A strange fact about modern life is that most of the computers responsible for it are running open source software. That is, software mostly written by unpaid, sometimes even anonymous volunteers. Some crucial open source programs are managed by just a single overworked programmer. And as the world learned last month, these programs can become attractive targets for hackers.

In this case, the hackers had infiltrated a popular open source program called XZ. Slowly, over the course of two years, they transformed XZ into a secret backdoor. And if they hadn't been caught, they could have taken control of large swaths of the internet.

On today's show, we get the story behind the XZ hack and what made it possible. How the hackers took advantage of the strange way we make modern software. And what that tells us about the economics of one of the most important industries in the world.

Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

May 17, 2024

|

By:

Jeff Guo,
Nick Fountain,
and 2 more

GPB

Donate

Support Quality Journalism

GPB is committed to bringing you comprehensive news coverage from Georgia, across the country and around the world. Your support makes this possible. Please consider making a gift today to support this vital public service.

Support GPB