---
title: "Mass is money: what it means · The AI Compute Race · DRYBURGH"
source: https://dryburgh.com/vol1/glossary/mass-is-money
description: "Mass is money: Chapter 13's claim that a gigawatt in orbit costs more than the same gigawatt on the ground, because every kilogram of radiator…"
---

# Mass is money

What does “Mass is money” mean?

Mass is moneyChapter 13’s claim that a gigawatt in orbit costs more than the same gigawatt on the ground, because every kilogram of radiator, panel and shielding is launched. *Chapter 13.*

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

The book uses this term in a sense of its own.

## Where the book uses it

- [Chapter 13 — A Change of Landlord](https://dryburgh.com/vol1/notes/chapter-13)The two proposed escapes from the constraints, the Gulf and orbit, and which constraints each actually removes.

## Where the record uses it

- Dated test [Chapter 13, mass is money, due 31 December 2030](https://dryburgh.com/vol1/tests#2030-1)

## Related terms

- [Gigawatt](https://dryburgh.com/vol1/glossary/gigawatt)
- [Change of landlord](https://dryburgh.com/vol1/glossary/change-of-landlord)
- [Vera Rubin](https://dryburgh.com/vol1/glossary/vera-rubin)

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)