---
title: "Frontier turnover: what it means · The AI Compute Race · DRYBURGH"
source: https://dryburgh.com/vol1/glossary/frontier-turnover
description: "Frontier turnover: The three rates, measured in chapter 1, at which a frontier lead spreads to rivals."
---

# Frontier turnover

What does “Frontier turnover” mean?

Frontier turnoverSee clocks of diffusion.

[Clocks of diffusion](https://dryburgh.com/vol1/glossary/clocks-of-diffusion) The three rates, measured in chapter 1, at which a frontier lead spreads to rivals. They are frontier turnover from model to model at the American frontier, capability catch-up by open-weight models, and the national frontier lag of China’s frontier behind America’s. *Chapter 1.*

From *The AI Compute Race*. [Read the book](https://dryburgh.com/vol1#buy)

## Also discussed in

- Dated test [Chapters 1 and 12, the wager](https://dryburgh.com/vol1/tests#2028-3)

## Related terms

- [Clocks of diffusion](https://dryburgh.com/vol1/glossary/clocks-of-diffusion)

From the glossary of The AI Compute Race.

- [Campuses](https://dryburgh.com/vol1/ledger)
- [Tests](https://dryburgh.com/vol1/tests)
- [Scorecard](https://dryburgh.com/vol1/scorecard)
- [Data](https://dryburgh.com/vol1/data/releases)
- [Chapter by chapter](https://dryburgh.com/vol1/companion)
- [The record at a glance](https://dryburgh.com/vol1/observatory)
- [The machine](https://dryburgh.com/vol1/machine)
- [One campus, four futures](https://dryburgh.com/vol1/hyperion)
- [Glossary](https://dryburgh.com/vol1/glossary)
- [People](https://dryburgh.com/vol1/people)
- [Sources](https://dryburgh.com/vol1/sources)
- [Notes](https://dryburgh.com/vol1/notes)
- [Where the book was wrong](https://dryburgh.com/vol1/corrections)
- [Where its sources were wrong](https://dryburgh.com/corrections?book=vol1)
- [The Paper](https://dryburgh.com/vol1/paper)
- [Consent](https://dryburgh.com/vol1/consent)
- [Who builds and pays](https://dryburgh.com/vol1/parties)

*The AI Compute Race: Five Races, One Machine* is a book by Lee S. Dryburgh, the first volume of THE COMPUTE ECONOMY, published by Dryburgh, an imprint of Contestra OÜ, Tallinn, Estonia; its record closes on 8 November 2026.

[About the book](https://dryburgh.com/vol1)[Tell me when it is out](https://dryburgh.com/vol1#notify)