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Unexplainable

Are we sure about fluoride?

Unexplainable

Vox

Science, Natural Sciences, Life Sciences

4.62.4K Ratings

🗓️ 21 May 2025

⏱️ 31 minutes

🧾️ Download transcript

Summary

Florida just became the second state to ban fluoride from its water system, which has made some public health experts pretty angry. Just how risky is fluoride really, and why is it so hard for us to get on the same page? Guest: Emily Oster, professor of economics at Brown University and CEO of ParentData For show transcripts, go to ⁠⁠⁠⁠⁠vox.com/unxtranscripts⁠⁠⁠⁠⁠ For more, go to ⁠⁠⁠⁠⁠vox.com/unexplainable⁠⁠⁠⁠⁠ And please email us! ⁠⁠unexplainable@vox.com⁠⁠ We read every email. Support Unexplainable (and get ad-free episodes) by becoming a Vox Member today: ⁠⁠⁠⁠⁠vox.com/members⁠ Help us plan for the future of Unexplainable by filling out a brief survey: ⁠⁠⁠voxmedia.com/survey⁠⁠⁠. Thank you! Learn more about your ad choices. Visit podcastchoices.com/adchoices

Transcript

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0:00.0

Here's the truth about AI. AI is only as powerful as the platform it's built into.

0:05.7

ServiceNow puts AI to work for people across your business, removing friction and frustration

0:11.1

for your employees, supercharging productivity for your developers, providing intelligent

0:16.5

tools for your service agents to make customers happier, all built into a single platform you can

0:21.9

use right now. That's why the world works with ServiceNow. Visit ServiceNow.com

0:27.8

slash UK slash AI for people. Hey there, this is Peter Kafka, I'm the host of channels, the show about

0:34.2

what happens when tech and media collide. And this week, we're talking to Adam Mosseri, who runs Instagram and who also runs Threads.

0:42.5

And he told me what Threads was originally going to be called.

0:45.3

I called it Textagram as a joke, which unfortunately stuck as a name for months before I managed to kill it.

0:52.2

Textagram, great name.

0:53.6

Yeah, you're making me regret telling you this.

0:56.4

That's this week on channels, wherever you listen to your favorite podcast.

1:04.7

If you've heard the name Emily Oster, it's probably because you or someone you know is having a baby.

1:10.7

Yeah, so I started writing about pregnancy when I got pregnant with my first kid who was now 14.

1:15.2

And when she started talking to her doctors, she immediately heard about all the things she couldn't have.

1:20.4

You can't have hot dogs, you can't have jelly meats, you can't have sushi, you can't have coffee, can't have alcohol.

1:24.4

There was a lot of can't, but not a lot of why. So Emily asked her doctors,

1:28.9

what exactly was the risk she was avoiding? Like, how strong was the evidence? Like, okay,

1:34.2

if I avoided ham, how much would that change my risk of hysteria? Like, how much do we really

1:40.0

know and how large is any given risk? Emily thought these were pretty basic questions, and she was kind of shocked when her doctors

1:49.8

just didn't have the answers.

1:54.1

Emily's a health economist at Brown, so in order to get the kind of answers she was looking

...

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