Effective Altruism
Effective altruism asks an old moral question in a new key: if we really mean to help, why should we be content with feeling good when we could try to do the most good possible, guided by evidence, comparison, and discipline?

Quick Facts
- Period
- 2001 – 2100
- Region
- Europe
- Key Figures
- Derek Parfit, Hilary Greaves, Peter Singer +3 more
Key Figures
Derek Parfit
Interlocutor
All Souls College, Oxford; moral philosophyDerek Parfit was the rare philosopher whose life seemed organized around a single, enormous question: what, if anything,...
Hilary Greaves
Proponent
University of Oxford; global priorities researchHilary Greaves has been one of the movement’s most important clarifying thinkers, especially on the question of how to t...
Peter Singer
Proponent
Princeton University; utilitarian ethicsPeter Singer stands as one of the most consequential and unsettling moral philosophers of the late twentieth and early t...
Sam Bankman-Fried
Interlocutor
FTX; effective altruism donor cultureSam Bankman-Fried is one of the movement’s most consequential cautionary figures, not because he articulated its philoso...
Toby Ord
Proponent
University of Oxford; Future of Humanity InstituteToby Ord gave effective altruism one of its most influential long-range ambitions: the claim that safeguarding the futur...
William MacAskill
Proponent
University of Oxford; effective altruism movementWilliam MacAskill is the most visible philosophical architect of effective altruism, and one of the reasons the movement...
The Story
This narrative combines documented history with dramatized scenes for storytelling purposes.
The World That Made It
Effective altruism did not begin as a slogan so much as a dissatisfaction. It arose in an intellectual world where generosity was plentiful but standards for ge...
The Central Idea
The central idea of effective altruism is disarmingly simple to state and difficult to live by: if you are trying to do good, you should try to do as much good ...
The System
Effective altruism became more than a slogan because it acquired machinery. The movement’s most characteristic method is not a doctrine in the old sense but a p...
Tensions & Critiques
The strongest objections to effective altruism do not come from simple indifference but from rival moral sensibilities that believe the movement has mistaken on...
Legacy & Echoes
Effective altruism’s influence has been broader than its size would suggest. It has changed how many people talk about philanthropy, not only in dedicated circl...
Timeline
Singer’s famine argument appears
**1972** — Peter Singer publishes "Famine, Affluence, and Morality," giving a concise philosophical form to the demand that affluent people should give far more than custom requires. The essay becomes one of the movement’s deepest moral ancestors by turning distant suffering into a direct test of conscience.
Reasons and Persons reframes moral impartiality
**1984** — Derek Parfit publishes Reasons and Persons, a book that will later prove central to effective altruist thinking about future generations, identity, and reasons. Its arguments do not found the movement, but they supply much of its philosophical vocabulary.
Giving What We Can is formed
**2007** — A group associated with Oxford begins organizing around the idea of pledging a substantial share of income to highly effective charities. This marks the transition from philosophical intuition to social movement.
The phrase 'effective altruism' spreads
**2011** — The label begins to unify overlapping circles of donors, philosophers, and organizers concerned with doing the most good possible. The new name helps the movement present itself as a coherent project rather than a collection of separate initiatives.
80,000 Hours and career-focused altruism expand the movement
**2013** — The career-planning organization 80,000 Hours helps popularize the idea that one's professional life can be a major site of moral impact. Effective altruism broadens from charity selection to life planning.
Doing Good Better is published
**2015** — William MacAskill publishes Doing Good Better, which becomes a major public statement of the movement's core principles. The book frames effectiveness as a moral obligation rather than a merely optional virtue.
Longtermism gains philosophical prominence
**2016** — The idea that future people should weigh heavily in moral decision-making becomes a defining strand of the movement. Discussion shifts toward existential risk, civilization resilience, and the ethics of the very long run.
Famine, Affluence, and Morality is revisited in public debate
**2019** — As effective altruism becomes more visible, Singer's classic argument is widely revisited in journalism and philosophy. Critics and supporters alike argue over whether its logic is inspiring, excessive, or both.
The Precipice argues for existential-risk reduction
**2020** — Toby Ord's The Precipice presents existential threats as one of humanity's most urgent moral problems. The book becomes a landmark for longtermist reasoning within effective altruism.
FTX and Sam Bankman-Fried reshape the movement’s public image
**2022** — Bankman-Fried's prominence as a donor tied to effective altruism brings unprecedented public attention, but also scrutiny and suspicion. The episode becomes a test of the movement's institutional judgment and moral credibility.
Post-FTX reflection and institutional reassessment
**2023** — The collapse of trust around FTX leads many within and around the movement to reconsider governance, culture, and donor dependence. Effective altruism survives, but with a more chastened sense of its vulnerabilities.
Effective altruism remains a live debate in philosophy and philanthropy
**2024** — The movement continues to influence discussions of global health, AI safety, animal welfare, and philanthropic strategy, even as its critics sharpen their objections. Its core question—how to do the most good possible using evidence and reason—remains unresolved and consequential.
Sources
- primary_textPeter Singer, 'Famine, Affluence, and Morality' (1972)
Canonical early argument for demanding aid and impartial concern.
- primary_textWilliam MacAskill, Doing Good Better: Effective Altruism and a Radical New Way to Make a Difference (2015)
Popular statement of the movement's practical philosophy.
- primary_textToby Ord, The Precipice: Existential Risk and the Future of Humanity (2020)
Major longtermist work closely associated with effective altruism.
- primary_textDerek Parfit, Reasons and Persons (1984)
Foundational philosophical background for future-oriented and impartial reasoning.
- referenceStanford Encyclopedia of Philosophy: 'Effective Altruism'
High-quality overview of the movement, its arguments, and criticisms.
- referenceInternet Encyclopedia of Philosophy: 'Effective Altruism'
Accessible reference on core concepts and debates.
- scholarly_articleHilary Greaves and William MacAskill, 'The Case for Strong Longtermism' (2021)
Influential statement of one of the movement's most contested extensions.
- primary_textPeter Singer, The Most Good You Can Do: How Effective Altruism Is Changing Ideas About Living Ethically (2015)
Public-facing philosophical defense of effective altruism.
- scholarly_resourceMax Roser, Hannah Ritchie, and Emanuele Santini, Our World in Data articles on global health and poverty
Useful empirical context for evidence-based global priorities.
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