The book

Thought Margin

Reclaiming the Capacity to Think in the Age of AI

Thought Margin book cover — plum background with acid-lime title.

The binding scarcity of modern life is not time and not attention. It is cognitive processing capacity — the room a mind needs to judge well, create, reflect, and be present. Thought Margin treats that capacity as a household account, with withdrawals, deposits, debt, and a balance, and gives the reader a gauge, a ledger, and a redesign. Along the way it examines how AI changes the shape of the account: answers get cheap, and margin becomes what makes your questions good.

Available on Amazon.

Contents

Each chapter has a two-page "essentials" summary you can download for personal use — the argument, the moves, and the AI thread on one printable spread.

IntroOut of Room

Part IName the scarcity, and take a reading

1The New ScarcityEssentials PDF
2The Competence TrapEssentials PDF
3What Collapses at ZeroEssentials PDF
4Your Margin BalanceEssentials PDF

Part IIOpen the books

5WithdrawalsEssentials PDF
6Decision DebtEssentials PDF
8Borrowed TomorrowsEssentials PDF

Part IIIRebuild

9Designing Margin into Your DaysEssentials PDF
10Protecting Deep ThoughtEssentials PDF
11Paying Down Decision DebtEssentials PDF
12Friction by DesignEssentials PDF
13The Creative DividendEssentials PDF
14The Judgment DividendEssentials PDF
15Margin for What MattersEssentials PDF
Conc.Living with Reserve

A note on the people in this book

Every named person is an invented composite, assembled from documented patterns and flagged as such where they first appear. The one person in the book who is not invented is the author.

A note on evidence

Famous statistics are checked against the studies that did or didn't produce them. Contested science is named as contested. The author's inferences are flagged as inferences in the notes.