Jonathan Haidt

But then you get the newsfeed, you get algorithms, Facebook is able to monetize time. They didn't have a monetary strategy early on. It's really in the early 2010s that they perfect it. And then they buy Instagram, which all the girls go on to. There's a lot of publicity.

But then you get the newsfeed, you get algorithms, Facebook is able to monetize time. They didn't have a monetary strategy early on. It's really in the early 2010s that they perfect it. And then they buy Instagram, which all the girls go on to. There's a lot of publicity.

But then you get the newsfeed, you get algorithms, Facebook is able to monetize time. They didn't have a monetary strategy early on. It's really in the early 2010s that they perfect it. And then they buy Instagram, which all the girls go on to. There's a lot of publicity.

And so as kids are trading in their flip phones, they're getting a smartphone with a front-facing camera and Instagram and other platforms and Tumblr and Pinterest and other things. And they're getting high-speed internet. So now you can do photographs and video. But if you're... born in 1995, you made it through. You get this stuff in late teens, but that's not as bad.

And so as kids are trading in their flip phones, they're getting a smartphone with a front-facing camera and Instagram and other platforms and Tumblr and Pinterest and other things. And they're getting high-speed internet. So now you can do photographs and video. But if you're... born in 1995, you made it through. You get this stuff in late teens, but that's not as bad.

And so as kids are trading in their flip phones, they're getting a smartphone with a front-facing camera and Instagram and other platforms and Tumblr and Pinterest and other things. And they're getting high-speed internet. So now you can do photographs and video. But if you're... born in 1995, you made it through. You get this stuff in late teens, but that's not as bad.

Your brain is most of the way done rewiring. Okay, now what happens if you're born five years later? What happens to a girl born in the year 2000? So she's Gen Z. Gen Z begins birth year in 1996, but let's look at a girl born in 2000. So she turns 15 in 2015. What that means is that she probably got her first phone, it was probably an iPhone, say in 2012 when she was 12.

Your brain is most of the way done rewiring. Okay, now what happens if you're born five years later? What happens to a girl born in the year 2000? So she's Gen Z. Gen Z begins birth year in 1996, but let's look at a girl born in 2000. So she turns 15 in 2015. What that means is that she probably got her first phone, it was probably an iPhone, say in 2012 when she was 12.

Your brain is most of the way done rewiring. Okay, now what happens if you're born five years later? What happens to a girl born in the year 2000? So she's Gen Z. Gen Z begins birth year in 1996, but let's look at a girl born in 2000. So she turns 15 in 2015. What that means is that she probably got her first phone, it was probably an iPhone, say in 2012 when she was 12.

Back then, it might have been more 13, 14, but now it's 10. Kids are getting iPhones at 10 plus or minus. So her first phone is an iPhone. She just lies about her age when she's 12, opens an Instagram account because they welcome you. They're glad to have you. As far as I can tell, they certainly don't try to keep kids off. She has a front facing camera. All her friends are on Instagram.

Back then, it might have been more 13, 14, but now it's 10. Kids are getting iPhones at 10 plus or minus. So her first phone is an iPhone. She just lies about her age when she's 12, opens an Instagram account because they welcome you. They're glad to have you. As far as I can tell, they certainly don't try to keep kids off. She has a front facing camera. All her friends are on Instagram.

Back then, it might have been more 13, 14, but now it's 10. Kids are getting iPhones at 10 plus or minus. So her first phone is an iPhone. She just lies about her age when she's 12, opens an Instagram account because they welcome you. They're glad to have you. As far as I can tell, they certainly don't try to keep kids off. She has a front facing camera. All her friends are on Instagram.

And so now she's going through puberty, taking pictures of herself and putting them up there and trying to get followers. So, you know, the platforms are introducing you to people. Hey, you might want to follow this person. Hey. So she grows up basically on a stage showing off her body, showing off her face, having strangers comment on her body and her face.

And so now she's going through puberty, taking pictures of herself and putting them up there and trying to get followers. So, you know, the platforms are introducing you to people. Hey, you might want to follow this person. Hey. So she grows up basically on a stage showing off her body, showing off her face, having strangers comment on her body and her face.

And so now she's going through puberty, taking pictures of herself and putting them up there and trying to get followers. So, you know, the platforms are introducing you to people. Hey, you might want to follow this person. Hey. So she grows up basically on a stage showing off her body, showing off her face, having strangers comment on her body and her face.

And the sexier she poses, the more positive reinforcement she gets. That's why all the girls look the same on Instagram. They're all doing the same sort of poses that come ultimately some of them from pornography. So again, it's just, it's unbelievable that we let this happen to childhood.

And the sexier she poses, the more positive reinforcement she gets. That's why all the girls look the same on Instagram. They're all doing the same sort of poses that come ultimately some of them from pornography. So again, it's just, it's unbelievable that we let this happen to childhood.

And the sexier she poses, the more positive reinforcement she gets. That's why all the girls look the same on Instagram. They're all doing the same sort of poses that come ultimately some of them from pornography. So again, it's just, it's unbelievable that we let this happen to childhood.

Yes. So I have a whole chapter, really two chapters that focus on play in the book. It's really important to understand our evolutionary story. So we're mammals. And what mammals are is mammals is a way of having huge investment in a child. So the female literally makes milk from her skin. I mean, it's a miracle, but that's what evolution figured out how to do.

Yes. So I have a whole chapter, really two chapters that focus on play in the book. It's really important to understand our evolutionary story. So we're mammals. And what mammals are is mammals is a way of having huge investment in a child. So the female literally makes milk from her skin. I mean, it's a miracle, but that's what evolution figured out how to do.