Why the Same Childhood Doesn't Affect Everyone the Same Way
The Michael Shermer Show
Michael Shermer
4.3 • 1K Ratings
🗓️ 6 March 2026
⏱️ 98 minutes
🧾️ Download transcript
Summary
For decades, developmental psychologist Jay Belsky has focused on one of the biggest questions in human development: how do early experiences shape the lives we go on to live?
In this conversation with Michael Shermer, he explains why childhood adversity can leave deep marks, why some children are far more affected by experience than others, and why averages often hide the most important part of the story.
Belsky revisits the old nature-versus-nurture debate, but pushes past the usual framing. His argument is not that childhood determines everything in some simple, uniform way. It's that children differ in how developmentally "plastic" they are. The same divorce, the same stress, the same family conflict, or the same support can have very different effects depending on the child.
The discussion moves through attachment theory, father absence, family conflict, puberty, epigenetics, and the evolutionary logic of development.
Belsky also returns to one of his central ideas: the children who are most vulnerable under harsh conditions may also be the ones most likely to flourish when conditions improve. That insight has major implications for how we think about parenting, intervention, and social policy.
Jay Belsky is a developmental psychologist and one of the field's most influential and highly cited researchers. Over a four-decade career at Penn State, the University of London, and UC Davis, he studied how early-life experience shapes attachment, family relationships, and child development. His new book is The Nature of Nurture: Rethinking How Childhood Adversity Shapes Development.
Transcript
Click on a timestamp to play from that location
| 0:00.0 | Hey, call my wife. |
| 0:03.1 | Calling UK Wildlife. |
| 0:04.7 | No, call my wife. |
| 0:07.1 | Here's a cheese knife, Lester. |
| 0:09.2 | Voice assistants not working for you. |
| 0:11.3 | With Black Rock Investment Trust's hands-on investing, long-term approach to growth and regular dividends, you have a lot working for you. |
| 0:18.1 | I live in Kent. |
| 0:19.6 | Get to know, BlackRock Investment Trusts at blackrock.com. You have a lot working for you. I live in Kent. Get to know BlackRock Investment Trusts at |
| 0:22.0 | blackrock.com. You have a lot working for you. Capital at risk, marketing material. BlackRock |
| 0:26.5 | Investment Management UK Limited, authorized and regulated by the Financial Conduct Authority. |
| 0:30.2 | Why did we lose a century of Darwinian thinking about human behavior? I opened the book, |
| 0:34.8 | my first chapter I took about biological gravity, which is the pull of evolutionary history. |
| 0:39.7 | I want to get rid of the label, and I know you still embrace it, social science. |
| 0:43.8 | Social science is based on the idea that we're different. |
| 0:46.8 | Therefore, we have a whole category of understanding that doesn't apply to the rest of life on this planet. |
| 0:53.1 | Well, every species is different in a way that doesn't apply probably to most of life on this planet. |
| 1:00.0 | And so we had to get over that hump and we're still not entirely over it, which is why the first chapter has to address it. |
| 1:07.0 | The fact that we're different isn't a reason that the laws of life on this planet don't apply to |
| 1:11.9 | us. So I think that was the big impediment to say nothing of, you know, social Darwinism. You know, |
| 1:17.7 | the other big mistake that the book addresses is when I first wrote, I advanced what was at the time |
| 1:23.3 | an outrageous theory with making the first half of the book deals with making a very novel prediction. |
| 1:28.9 | What I discovered was that even though the theory like the book is about how nurture works |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from Michael Shermer, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of Michael Shermer and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2026.