---
title: "The Noocene"
description: "The Noocene is a short text by Benjamin Bratton, designed with GIGA, that names a planetary epoch and sketches how it should understand itself."
type: "reading-notes"
authors:
  - "Benjamin Bratton"
published: "2025-11-21"
original_url: "https://noocene.antikythera.org/"
doi: "10.1162/ANTI.5D05"
canonical_url: "https://antikythera.wiki/work/journal/noocene"
md_url: "https://antikythera.wiki/md/work/journal/noocene"
last_updated: "2026-08-23"
site: "Antikythera Wiki"
---

# The Noocene

> Independent, unofficial reading notes from Antikythera Wiki (https://antikythera.wiki). Written with AI from the published text, with citations; not by the work's author and not affiliated with Antikythera (https://antikythera.org). Read the original at the link below.

- **Authors:** Benjamin Bratton
- **Published:** 2025-11-21
- **Kind:** Journal · Journal article
- **DOI:** https://doi.org/10.1162/ANTI.5D05
- **Original:** https://noocene.antikythera.org/
- **Length:** 2.8k words
- **This page:** https://antikythera.wiki/work/journal/noocene
- **Notes generated:** 2026-08-23

## Summary

The Noocene is a short text by [Benjamin Bratton](https://antikythera.wiki/people/benjamin-bratton), designed with [GIGA](https://antikythera.wiki/people/giga), that names a planetary epoch and sketches how it should understand itself. Bratton's claim is that the comprehensive artificialization of Earth is not primarily the work of one species or one economic system but of the evolution of complex cognition itself, and that humans are the medium of this process rather than its master. The epoch is defined by a paradox: at the moment intelligence begins to grasp its own evolution, it also sees that its success may undermine the foundations of its future. Four "critical artifacts," a 1662 star atlas, the 1966 Lunar Orbiter image of Earth, Heidegger's reaction to it, and Antikythera's own Monolith, carry the second claim: computation has always been a tool of cosmology, and philosophy must accept the disorientation it produces rather than refuse it. The text reads as the statement accompanying an installation and a limited-edition object, part manifesto and part catalogue.

## The argument

Bratton starts from the noosphere, which he defines as the sphere of thought that emerges from Earth's geophysical and biological spheres through the interaction of minds. It is not metaphysical: it is matter becoming cognitive and partially aware of itself. The evolution of intelligence at planetary scale is also the cause of the planet's artificialization, and the Noocene is his name for the epoch so defined. Computation has been part of this story since the Antikythera mechanism, which oriented its users in relation to their planetary condition, yet our grasp of what computation implies for "the composition of the next Earth" remains cloudy. Bratton suggests the confusion stems from a failure to see the evolution of intelligence, including our own, as a planetary phenomenon.

The middle of the text makes the evolutionary argument. Earlier epochal transitions were locally purposeful but cumulatively unintended; in the human era intelligence is far more agential, though never omniscient. Bratton reframes the anthropocene, a term he calls slightly passé, as the result not of a species' industry but of complex cognition's evolution. The mechanism is niche construction: life alters its niche to capture more energy, matter and information, which lets it scale, and which in turn changes the selection pressures acting on it. The cycle is recursive and prone to runaway effects, and Homo sapiens is its clearest case: primates that became so good at artificializing local niches that they evolved to suit their own project and eventually made the whole planet their niche. Artificialization is therefore not the opposite of evolution but its project.

From this follows the text's most pointed claim. Humans are exceptional in the concentration of sapient agency they carry, but not in the sense of standing above planetary processes; "we are their accomplishments as much as they are ours." We are the vehicle of the Noocene, not its master; the role might have fallen to another lineage had the meteor missed. The open question is what happens when intelligence operates through an additional, perhaps non-biological, medium of our own making. A species that artificializes the process driving artificialization, intelligence itself, may be entering an advanced Noocene or something else.

The final movement turns to cosmology. Astronomical cosmology and anthropological cosmology have diverged, and computation's successes rather than its failures force the question of a new synthesis. The artifacts show philosophy either reconciling itself to what calculation reveals, as Cellarius's atlas did, or refusing to, as Heidegger did. Bratton sides with the disorientation: only technically mediated, alienating perspectives let humans live on the Earth as it is.

## Section by section

### Opening statement and questions

The text opens with a compressed thesis, "the evolution of thought is a terraforming force," radicalised now that cognition can be performed by mineral substrates. It defines the noosphere and the Noocene, states the epoch's paradox, and then poses questions rather than answers, among them how the artificialization of intelligence forces a rediscovery of what intelligence is, and how computation might be understood as "how information structures the universe in time" rather than as our computers. The questions function as a research agenda.

### The Noocene as evolutionary epoch

After a section break Bratton makes the evolutionary argument summarised above, from the reframing of the anthropocene through niche construction and the "precocious fire apes" to the conclusion that humans are the medium rather than the protagonist. With only one example, our own, alternative timelines cannot be compared; the next Earth "coheres with or without us, but most likely through us." The section ends on the question of an intelligence that artificializes intelligence.

### Critical artifacts

A bridge links the emergence of artificial intelligence ("the fire apes have made the rocks think fast") to the deep history of human, computational and planetary intelligence, which Bratton says are one story. Four artifacts follow. Harmonia Macrocosmica, the 1662 atlas by Andreas Cellarius, is read as post-Copernican astronomy achieving a fully formed cosmology by embracing the technological alienation of the intuitive horizon. The Lunar Orbiter 1 image of 1966 is the first Earthrise, older than the famous Apollo one; Bratton calls it "an artifact from the outside." The Der Spiegel entry records Heidegger shuddering at that image and declaring that atomic bombs were unnecessary because the uprooting of man had already happened; Bratton's gloss is "philosophy refusing to become cosmology," and he takes the end Heidegger mourned as a beginning. The Monolith, recalling the obelisk of 2001, is Antikythera's generative matrix of archival material overlaid with key concepts, a "movie to be read," offered as a sketch for a computational cosmology that welcomes alienation.

### Unwinding the Noocene

The coda describes the planet growing a sensory crust of cities, satellites and supercomputers, an accidental megastructure spanning from Low Earth Orbit to three-nanometre logic gates. Bratton then defines a unit: one Planetary Computing Unit equals one zettaFLOPS, roughly the utilised capacity today. With doubling every thirty months, he projects 2 PCU in two and a half years, 10 in six, and 100 in sixteen, a world as unfamiliar to us as ours is to our grandparents. The durable lesson is that the ground is "unfixed and unfixable": the Earth has terraformed itself before and will again. Credits for the installation's artists and a note on the edition of 101 renders close the text.

## Key concepts

- **[Noocene](https://antikythera.wiki/terms/noocene)** — The planetary epoch defined by the willful agency of mind: what happens when a planet produces intelligent life that reproduces itself by artificializing its environments.
- **[Noösphere](https://antikythera.wiki/terms/noosphere)** — The sphere of thought emerging from Earth's physical and biological spheres through interacting minds; for Bratton a material, not metaphysical, result of matter becoming cognitive.
- **[Artificialization](https://antikythera.wiki/terms/artificialization)** — Not the opposite of the evolved but "the project of evolution," running in both directions as intelligent life remakes the world and thereby itself.
- **[Recursive Niche Construction](https://antikythera.wiki/terms/recursive-niche-construction)** — The loop in which a lifeform alters its niche so successfully that the altered niche imposes new selection pressures, producing runaway effects such as Homo sapiens.
- **[Planetary Computation Unit](https://antikythera.wiki/terms/planetary-computation-unit)** — Bratton's proposed unit, 1 PCU = 1 zettaFLOPS, for the total utilised computational capacity of the planet.

## Connections

- [The Transition from the Biosphere to the Noösphere](https://antikythera.wiki/work/journal/noosphere) supplies the Vernadskian premise that thought is a geological force; Bratton extends it to computation and drops Vernadsky's confidence that the process is benign.
- [Planetary Sapience & Planetary Stupidity](https://antikythera.wiki/work/journal/babynoosphere) is Moynihan's history of the same epoch told through its errors; the two agree that artificialization is continuous with life and that the natural/artificial line is unstable, but Moynihan foregrounds contingency and catastrophe where Bratton foregrounds the evolutionary logic.
- [Speculative Philosophy of Planetary Computation](https://antikythera.wiki/work/journal/spoc) and [Planetary Sapience](https://antikythera.wiki/work/media/noema-planetary-sapience) develop the Lunar Orbiter and Heidegger material at length, and the "apex mediating residue" framing of humans that this text compresses into "vehicle, not master."
- [Planetary Vision](https://antikythera.wiki/work/journal/planetaryvision), Galison's essay, is the fuller account of technically mediated images of the Earth and cosmos that the critical artifacts gesture toward.
- [The Long L](https://antikythera.wiki/work/journal/longl) shares the substrate-agnostic, cosmological reframing of habitability but is more cautious about any progressive reading of technological evolution.


## Terms used

- [Allocentrism](https://antikythera.wiki/terms/allocentrism)
- [Artificialization](https://antikythera.wiki/terms/artificialization)
- [Noocene](https://antikythera.wiki/terms/noocene)
- [Noösphere](https://antikythera.wiki/terms/noosphere)
- [Paradox of Intelligence](https://antikythera.wiki/terms/paradox-of-intelligence)
- [Planetary Computation](https://antikythera.wiki/terms/planetary-computation)
- [Planetary Computation Unit](https://antikythera.wiki/terms/planetary-computation-unit)
- [Psychozoic Era](https://antikythera.wiki/terms/psychozoic-era)
- [Reason as a Social Structure](https://antikythera.wiki/terms/reason-as-a-social-structure)
- [Recursive Niche Construction](https://antikythera.wiki/terms/recursive-niche-construction)

## Related works

- [The Transition from the Biosphere to the Noösphere](https://antikythera.wiki/work/journal/noosphere)
- [Latent Spacecraft](https://antikythera.wiki/work/journal/latentspacecraft)
- [Planetary Vision](https://antikythera.wiki/work/journal/planetaryvision)
- [What is Intelligence? (Lecture)](https://antikythera.wiki/work/journal/wii-film)
- [Speculative Philosophy of Planetary Computation](https://antikythera.wiki/work/journal/spoc)