Effective Altruism

Effective Altruism (EA) is a philosophical and social movement, formally named around 2011, that advocates using evidence and reason to maximize the good done by charitable giving and career choice. It grew out of two streams: the Oxford moral philosophy of Toby Ord and William MacAskill, who founded Giving What We Can in 2009 and 80,000 Hours in 2011, and the Rationalist Community around Eliezer Yudkowsky's LessWrong and the charity evaluator GiveWell. Over the 2010s the movement's center of gravity shifted toward "longtermism," the view that positively influencing the long-run future, especially by preventing human extinction from artificial intelligence, is a moral priority of the highest order.¹²

Rationalist and Thiel Roots

The movement's intellectual lineage runs through the rationalist subculture: Yudkowsky used the phrase "effective altruism" in writing in 2007, four years before Ord and MacAskill named their movement, and Ord was an active commenter on LessWrong. The two communities shared personnel, the San Francisco Bay Area geography, and the conviction that artificial-intelligence risk was the defining problem of the era.²³

Peter Thiel delivered the keynote address at the 2013 Effective Altruism Summit. Thiel's transhumanist and life-extension interests, his early funding of the Machine Intelligence Research Institute, and his cofounding of the Singularity Summit placed him adjacent to the longtermist wing of the movement, though his own politics diverged from the movement's professed egalitarian giving toward the concentration of capital and state-adjacent power documented across the Thiel Influence Network.⁴

Longtermism and Existential Risk

The longtermist turn was anchored intellectually by the philosopher Nick Bostrom, who founded the Future of Humanity Institute at the University of Oxford in 2005, and popularized by MacAskill's 2022 book What We Owe the Future. Longtermism holds that because the number of potential future people vastly exceeds the present population, even small reductions in the probability of human extinction outweigh most conventional charitable causes. Critics, including the philosopher Émile P. Torres and the linguist Timnit Gebru, argued that the framework functions as a justification for the priorities of wealthy technologists and named the cluster of ideas it sits within "TESCREAL."¹⁵

The probabilistic core of the program was set out in Ord's 2020 book The Precipice, which estimated a one-in-six chance of an existential catastrophe this century and placed unaligned artificial intelligence at roughly one in ten, the single largest risk. The Future of Humanity Institute that supplied much of this intellectual apparatus closed in April 2024 after Oxford's Faculty of Philosophy declined to renew its staff contracts, a shutdown that followed the 2023 resurfacing of a 1996 email in which Bostrom had used a racial slur. Torres, a former contributor to the field who turned against it, argued that the TESCREAL bundle (transhumanism, extropianism, singularitarianism, cosmism, rationalism, effective altruism, and longtermism) descended from twentieth-century eugenic thinking and treated currently existing human suffering as small next to hypothetical future digital populations.⁵¹⁰

Effective Altruism and the AI Labs

The movement's AI-risk priority placed its adherents at the center of the leading artificial-intelligence companies. OpenAI, founded in 2015 with backing from Peter Thiel and Elon Musk among others, and Anthropic, founded in 2021 by former OpenAI researchers from the effective-altruism milieu, both grew out of the conviction that advanced AI is an existential risk. In November 2023 OpenAI's nonprofit board, including the effective-altruism-tied members Helen Toner and Tasha McCauley, briefly fired chief executive Sam Altman over the pace of commercialization before he was reinstated, a clash widely read as a defeat for the movement's safety wing.⁸

The same period produced a mirror-image opposition, Effective Accelerationism (e/acc), which formed explicitly against effective altruism's AI caution and was championed by the venture capitalist Marc Andreessen. The two camps, one urging restraint and one urging acceleration, are competing outgrowths of the same transhumanist and rationalist tradition.⁹

The FTX Collapse

The movement's largest individual funder was Sam Bankman-Fried, the cryptocurrency entrepreneur who founded the FTX exchange and the FTX Future Fund, which directed money to longtermist and AI-safety causes with such projects at the top of its priority list. Bankman-Fried, who had been recruited into earning-to-give by MacAskill while a student, was convicted of fraud in November 2023 after FTX collapsed in November 2022 with billions of dollars in customer funds missing. The collapse discredited the movement's public standing and exposed the dependence of its institutions on a single fraudulent benefactor.⁶⁷

The Future Fund, launched in February 2022 and run by Nick Beckstead, Leopold Aschenbrenner, MacAskill, and others, committed roughly 160 million dollars across about 260 grants before it was wound up nine months later; its entire leadership resigned the week FTX failed. A March 2023 TIME investigation reported that movement leaders had been warned about Bankman-Fried's conduct years earlier, drawing the charge that effective altruism's consequentialist "ends justify the means" reasoning had helped rationalize his fraud. The umbrella charity Effective Ventures, which housed the Centre for Effective Altruism, 80,000 Hours, and Giving What We Can, settled with the FTX bankruptcy estate in 2024 for 26,786,503 dollars, the full sum it had received, and spun its projects out as independent legal entities.⁷¹¹¹²