Effective accelerationism (e/acc)
Effective accelerationism, usually styled e/acc, is a loose online movement and self-applied label that favors faster technological and market-led development, especially in AI, over broad attempts to slow it. Founding texts connect competition, experimentation, energy use, and expanding intelligence with future flourishing. The label names a worldview and coalition signal, not a technical method, scientific result, standards body, or settled policy platform.
Origin and context
A public post dated 31 May 2022 and preserved in a verbatim repost names four pseudonymous contributors: @zestular, @creatine_cycle, @BasedBeffJezos, and @bayeslord. Notes published on 10 July supplied a longer physics-first rationale. Forbes later identified BasedBeffJezos as Guillaume Verdon, who confirmed the identity and described engineering the ideology for social-media virality. Marc Andreessen's October 2023 Techno-Optimist Manifesto shared pro-growth and market themes and listed BasedBeffJezos and bayeslord among its `patron saints`; it amplified adjacent ideas but was not the founding e/acc text.
Why it matters
e/acc became shorthand for a real fault line in AI culture: how to weigh the costs of delay against technological risk, whether competition and decentralization outperform central control, and whether innovation itself should be treated as a moral priority. Independent reporting documented the label as a public signal among founders and investors through 2025. For readers, its value is diagnostic rather than predictive: encountering `e/acc` identifies a family of arguments worth unpacking, but does not reveal a person's complete policy position or prove that acceleration will deliver the claimed benefits.
Example
In an AI-policy debate, an e/acc participant may argue that open competition and faster capability development will generate tools for solving harms, while a cautious participant may seek evaluations, deployment gates, or limits for particular risks. That disagreement should be recorded claim by claim, not reduced to `optimists versus doomers`. Techno-optimism is broader and has its own Andreessen manifesto. Effective altruism is a research and practical project about finding effective ways to help others; the e/acc founders intentionally played on its name while criticizing some longtermist AI-safety positions. General accelerationism predates both movements and includes competing political traditions.
How it differs
AI doomerism / Decel
`Doomer` and `decel` are polemical labels used in this debate, not neutral names for every researcher, regulator, or organization that favors some AI safeguards. e/acc is the affirmative movement label; its opponents do not form one matching movement.
Defensive acceleration
Defensive acceleration, commonly styled d/acc, prioritizes decentralized technologies that improve defense relative to offense. It shares a pro-technology orientation but explicitly rejects undifferentiated acceleration, so it is not an expanded form or spelling variant of e/acc.
p(doom)
p(doom) is an individual's stated probability of catastrophic outcomes, not an ideology. e/acc arguments often dispute high-risk framings, but the movement's label does not encode one shared probability estimate.
Maturity and evidence
Maturity is rated 3. The abbreviation and expansion have attributable primary texts, repeated self-identification, and independent coverage from 2023 through 2025. That supports an established cultural label, not maturity 4: e/acc has no authoritative membership, institution, doctrine, or policy document, and reporting shows that adherents attach materially different meanings to it. Continued visibility demonstrates recognition, not scientific validation or measurable policy influence.
Limits and open questions
Primary manifestos explain what advocates claim, not whether those claims are empirically correct. The thermodynamic language is an extrapolation from physics into ethics and political economy and must be attributed. Independent accounts also differ in tone and classification, while the movement itself is intentionally decentralized and meme-driven. Avoid claims about supporter counts, unified regulatory positions, political affiliation, or causal influence on AI development unless separately measured. Future use may narrow to a historical 2022–25 subculture or broaden into generic pro-innovation branding, requiring renewed review.
Related terms
References
- Effective Accelerationism — e/acce/acc newsletter · 2022-10-31 · class A
- Notes on e/acc principles and tenetsBeff's Newsletter · 2022-07-10 · class A
- Who Is @BasedBeffJezos, The Leader Of The Tech Elite's 'E/Acc' Movement?Forbes · 2023-12-01 · class B
- Inside the political split between AI designers that could decide our futureThe Independent · 2024-02-07 · class B
- Hot New Thermodynamic Chips Could Trump Classical ComputersWIRED · 2025-03-24 · class B
- The Techno-Optimist ManifestoAndreessen Horowitz · 2023-10-16 · class A
- The Definition of Effective AltruismOxford University Press · 2019-09-12 · class B
- d/acc: one year laterVitalik Buterin · 2025-01-05 · class A
Last updated: 2026-09-07
This term is also covered in the Skills Atlas as ai ethics skill.