---
title: "Perimeter: what it means · The AI Compute Race · DRYBURGH"
source: https://dryburgh.com/vol1/glossary/perimeter
description: "Perimeter: The set of spending a count includes. Goldman Sachs's perimeter is the spending it counts as AI investment."
---

# Perimeter

What does “Perimeter” mean?

PerimeterThe set of spending a count includes. Goldman Sachs’s perimeter is the spending it counts as AI investment; the Scorecard’s rows and chapter 14 name their perimeter where it decides a figure. *Chapters 1, 14.*

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

## Where the book uses it

- [Chapter 1 — The Stakes](https://dryburgh.com/vol1/notes/chapter-1)What the race is for: the belief that a lead in AI can compound into a lasting advantage, how long such leads have actually lasted, and what a trillion dollars a year is being bet against.
- [Chapter 14 — The Convergence](https://dryburgh.com/vol1/notes/chapter-14)One campus, Meta’s Hyperion, run through four possible futures to show how science, power, money and permission meet in the price of an accelerator-hour.

## Related terms

- [Accelerator-hour](https://dryburgh.com/vol1/glossary/accelerator-hour)
- [Algorithmic efficiency](https://dryburgh.com/vol1/glossary/algorithmic-efficiency)
- [Application layer](https://dryburgh.com/vol1/glossary/application-layer)
- [Arsenal behind every arsenal](https://dryburgh.com/vol1/glossary/arsenal-behind-every-arsenal)
- [B200](https://dryburgh.com/vol1/glossary/b200)
- [Break fee](https://dryburgh.com/vol1/glossary/break-fee)
- [Break-point](https://dryburgh.com/vol1/glossary/break-point)
- [Bridge power](https://dryburgh.com/vol1/glossary/bridge-power)
- [Capital expenditure](https://dryburgh.com/vol1/glossary/capital-expenditure)
- [Capital recovery](https://dryburgh.com/vol1/glossary/capital-recovery)
- [Clearing house](https://dryburgh.com/vol1/glossary/clearing-house)
- [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)