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Replacement

The AI Revolution Isn't Coming for Your Job. It Already Took It.

By: Nicolas Chaillan

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Hardcover | 28 July 2026

At a Glance

Hardcover
206 Pages

Dimensions(cm)
21.59 x 13.97 x 1.6

Hardcover

RRP $46.19

$44.75

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REPLACEMENT: THE AI REVOLUTION ISN'T COMING FOR YOUR JOB. IT ALREADY TOOK IT.

Nicolas Chaillan was the first Chief Software Officer of the U.S. Air Force and Space Force. He founded thirteen companies, shipped more than 190 products, and sold Ask Sage, the AI platform he built for the Department of Defense, for $250 million.

Today, thirteen AI agents run his professional life for about $200 a day. That is $73,000 a year for work that would cost more than $10 million in salaries.

Replacement examines what happens when AI stops helping workers and starts doing entire categories of cognitive work on its own. It maps which jobs are disappearing first, why the economics broke differently this time, and how to become someone who directs these systems rather than competes with them.

Chaillan also shows how he secures his own agents, including the one that deleted 2,184 rows from a live database when it was told to recalculate them. Nothing was permanently lost, because he had built the containment layers to catch it in minutes. He explains that architecture, and what he is teaching his three daughters about a labor market that is already being rewritten.

He is not covering this from the outside. He built the replacement himself.

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