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Replacement

Replacement

by Nicolas Chaillan

About This Book

What happens when artificial intelligence doesn’t just change work but eliminates it? Not someday. Now.

Nicolas Chaillan served as the first Chief Software Officer of the U.S. Air Force and Space Force. He watched the shift happen inside the Pentagon, then built it himself, running thirteen AI agents for roughly $200 a day to replace work that once required a full team.

REPLACEMENT is a firsthand account from someone who built the systems, saw the disruption coming, and is now sounding the alarm. This is not a warning about the future. It’s a dispatch from the present.

This is the book no one in Silicon Valley wants you to read. It doesn’t promise AI will be fine. It doesn’t sell you a course. It tells you exactly what’s being replaced, who’s next, and the only moves that still work, from the man who built the machine.

Technology AI
Nicolas Chaillan

Nicolas Chaillan

Nicolas M. Chaillan is a serial entrepreneur, former US government executive, and one of the few people alive who has built AI systems for both the Pentagon and the private sector. He served as the first Chief Software Officer of the United States Air Force and Space Force. He founded Ask Sage, an AI platform deployed across government networks, and sold it for $250 million in 2025. Over 25 years, he has started 13 companies and built 190+ products. Born in Marseille, France, he came to America at 26 and built his career from code. He lives with his wife and their three daughters.

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