> For the complete documentation index, see [llms.txt](https://laurence-wilse-samson.gitbook.io/textbooks/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://laurence-wilse-samson.gitbook.io/textbooks/the-population-panic/the-new-population-panic/readme.md).

# Introduction

> **Revised full draft, last updated November 2026.** One of 22 textbooks freely readable online ([all books](https://lwilsesamson.com/textbooks/)), all written with AI assistance. All rights reserved. Corrections are welcome at <laurence@lwilsesamson.com>.

***

Global fertility has fallen by more than half since 1960. Over two-thirds of the world's population now lives in countries with below-replacement fertility. Headlines warn of "demographic collapse," economists predict innovation will stagnate, and longtermist philosophers lament the trillions of potential people who will never exist.

This book argues they're wrong—not about the facts, but about what the facts mean. Population decline is a manageable transition, not an existential catastrophe. The challenges it poses are real but addressable through adaptation rather than panic—and the case for alarm rests on contested philosophical premises that deserve scrutiny rather than deference.

## Structure

| Part                             | Chapters | Question                                                |
| -------------------------------- | -------- | ------------------------------------------------------- |
| **I. The Empirical Landscape**   | 1–3      | What do the data show, and how certain can we be?       |
| **II. Economic Consequences**    | 4–6      | Does decline spell catastrophe, and what can policy do? |
| **III. Philosophical Questions** | 7–9      | What hidden premises underlie demographic concern?      |
| **IV. A Different Framework**    | 10–12    | How should we act under deep uncertainty?               |

*Engages critically with Dean Spears and Michael Geruso's* After the Spike *(2025), longtermist philosophy, and degrowth economics.*

***

## About the author

I am an economist in New York. I am Associate Director at Oxford Economics, I teach as an adjunct at NYU Wagner and Columbia SIPA, and I am a Senior Research Fellow at the University of Johannesburg's Centre for Competition, Regulation and Economic Development. I took my PhD in economics at Columbia. More at [lwilsesamson.com](https://lwilsesamson.com/).

## How this book was made

I wrote this book with substantial help from AI language models, principally Claude (Anthropic), which I used for drafting, editing, research synthesis, literature review and structural organization, and consistency checking. The outline, the argument, the selection of material and the judgments throughout are mine, as is the responsibility for what remains wrong. Figures were generated from code using the sources identified in their captions; illustrative figures are labelled. Figure code and working extracts are available on request.

In October 2026 I revised the whole text in two further passes, also with AI help: one to remove the stock phrasing that AI drafts produce, and one to bring the prose closer to my own academic writing.

I then had every checkable claim in the text (465 in all: numbers, quotations, attributions, dates and reported findings) compared with a primary source, using AI tools for the lookups and reviewing each change myself. Each claim was confirmed, corrected, softened or cut. This was a claim-by-claim check, not a line-by-line proofread, and errors surely remain.

Please report errors to <laurence@lwilsesamson.com>. Corrections usually go live the same day.

*Last updated: November 2026*