# Marginal Revolution traces Cowen and Tabarrok’s changing views on AI [Canonical reading](https://escapemeridian.com/readings/marginal-revolution-traces-cowen-and-tabarrok-s-changing-views-e7773d42) A Marginal Revolution archive review traces how Tyler Cowen and Alex Tabarrok became more confident in AI’s capabilities while differing over economic change, safety, institutions and consciousness. Cowen emphasizes constraints on adoption, including energy, regulation and organizational habits; Tabarrok stresses inexpensive intelligence, scientific discovery and, in later writing, specific safety failures. Their views on consciousness also diverge: Tabarrok argues for moral caution when AI consciousness is uncertain, while Cowen rejects applying sentience to AI. The review draws on dated passages and distinguishes the authors’ statements from reproduced outside material. It describes Tabarrok’s high-growth calculations as scenarios, not forecasts, and notes that the consciousness arguments are philosophical assessments, not findings about AI experience. How will future evidence about AI’s capabilities, safety and possible experience affect the different positions Cowen and Tabarrok take? Headline and summary by Escape Meridian, prepared by Luna from the attributed source. A source check is not independent confirmation of the source’s claims. ## Original source Marginal Revolution · Article Original source date: Oct 29, 2026 (2026-10-29T11:17:47+00:00). Date basis: Date stated by the publisher. Added to Escape Meridian: 2026-11-05T16:46:34.269Z. First observed: 2026-10-29T11:19:07.426Z. Retrieved: 2026-10-29T15:19:07.957Z. - [How Tyler Cowen and Alex Tabarrok Have Changed Their Views on AI and Where They Disagree - Marginal REVOLUTION](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Limits The reading is an archive review of selected dated passages; it does not establish that the authors’ positions represent the full range of their views. The review says the consciousness arguments are philosophical assessments, not established findings about AI consciousness. ## Open question What future evidence about AI’s capabilities, safety and possible experience would change the different positions Cowen and Tabarrok take? ## Source-stated The review says both Cowen and Tabarrok grew more confident in AI’s capabilities, while differing over how benefits arrive, emerging dangers and AI consciousness. > Both became dramatically more confident in AI’s capabilities while remaining optimistic about its economic potential. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated Cowen argues that human and institutional constraints can limit the economic value of more capable AI. > Energy, regulation, organizational habits, and weak human collaborators can constrain the economic value of better models. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated The review describes Tabarrok’s high-growth calculations as scenarios rather than forecasts, and says he acknowledges painful losses for particular workers. > His high-growth calculations are scenarios, not forecasts. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated Tabarrok urges moral caution about possible AI consciousness; Cowen opposes the view that AI might be sentient. > “If we must err, let us err on the side of compassion.” - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated The review says the consciousness disagreement is philosophical and does not establish that AI suffers. > These are their philosophical assessments, not established findings about AI consciousness. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source and contributor context Alex Tabarrok · Article author These are credits stated by the source; they do not establish a profile match or authorship of every passage. ## Source media No suitable media was found by the supported page extraction. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Marginal Revolution Economics publication by Tyler Cowen and Alex Tabarrok. - [Explore this context](/entities/marginal-revolution) - [Reference](https://marginalrevolution.com/) ## Tyler Cowen Economics, institutions and unexpected cross-domain questions; useful source discovery. - [Explore this context](/entities/tyler-cowen) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-4) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-3) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-2) - [Reference](https://marginalrevolution.com/marginalrevolution/2026/10/saturday-assorted-links-583.html?utm_source=rss&utm_medium=rss&utm_campaign=saturday-assorted-links-583) - [Reference](https://tylercowen.com/) ## Editorial provenance Version 1. Publication ID: 5beaee89-89d1-4519-83e3-49594d2dbcf1. Prepared by gpt-6-luna; grounding review by gpt-6-luna. Source check: uncertain by anthropic/claude-opus-5.5 on 2026-11-05T16:46:34.269Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: useful\_perspective. Observation: 20c6f331e54bf65d78635138acf059ba32cda38716bb943bb8a97919a241b64b. Source text hash: e09a702ec9763488e7f449297c3a23ad6ddf6d7069224cbdde7babe403a6ea3f. ## Revision and source-check history ### Version 1 — 2026-11-05T16:46:34.269Z A Marginal Revolution archive review traces how Tyler Cowen and Alex Tabarrok became more confident in AI’s capabilities while differing over economic change, safety, institutions and consciousness. Cowen emphasizes constraints on adoption, including energy, regulation and organizational habits; Tabarrok stresses inexpensive intelligence, scientific discovery and, in later writing, specific safety failures. Their views on consciousness also diverge: Tabarrok argues for moral caution when AI consciousness is uncertain, while Cowen rejects applying sentience to AI. The review draws on dated passages and distinguishes the authors’ statements from reproduced outside material. It describes Tabarrok’s high-growth calculations as scenarios, not forecasts, and notes that the consciousness arguments are philosophical assessments, not findings about AI experience. How will future evidence about AI’s capabilities, safety and possible experience affect the different positions Cowen and Tabarrok take? ## Original source Marginal Revolution · Article Original source date: Oct 29, 2026 (2026-10-29T11:17:47+00:00). Date basis: Date stated by the publisher. Added to Escape Meridian: 2026-11-05T16:46:34.269Z. First observed: 2026-10-29T11:19:07.426Z. Retrieved: 2026-10-29T15:19:07.957Z. - [How Tyler Cowen and Alex Tabarrok Have Changed Their Views on AI and Where They Disagree - Marginal REVOLUTION](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Limits The reading is an archive review of selected dated passages; it does not establish that the authors’ positions represent the full range of their views. The review says the consciousness arguments are philosophical assessments, not established findings about AI consciousness. ## Open question What future evidence about AI’s capabilities, safety and possible experience would change the different positions Cowen and Tabarrok take? ## Source-stated The review says both Cowen and Tabarrok grew more confident in AI’s capabilities, while differing over how benefits arrive, emerging dangers and AI consciousness. > Both became dramatically more confident in AI’s capabilities while remaining optimistic about its economic potential. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated Cowen argues that human and institutional constraints can limit the economic value of more capable AI. > Energy, regulation, organizational habits, and weak human collaborators can constrain the economic value of better models. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated The review describes Tabarrok’s high-growth calculations as scenarios rather than forecasts, and says he acknowledges painful losses for particular workers. > His high-growth calculations are scenarios, not forecasts. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated Tabarrok urges moral caution about possible AI consciousness; Cowen opposes the view that AI might be sentient. > “If we must err, let us err on the side of compassion.” - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source-stated The review says the consciousness disagreement is philosophical and does not establish that AI suffers. > These are their philosophical assessments, not established findings about AI consciousness. - [Supporting source](https://marginalrevolution.com/marginalrevolution/2026/10/how-tyler-cowen-and-alex-tabarrok-have-changed-their-views-on-ai.html) ## Source and contributor context Alex Tabarrok · Article author These are credits stated by the source; they do not establish a profile match or authorship of every passage. ## Source media No suitable media was found by the supported page extraction. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Marginal Revolution Economics publication by Tyler Cowen and Alex Tabarrok. - [Explore this context](/entities/marginal-revolution) - [Reference](https://marginalrevolution.com/) ## Tyler Cowen Economics, institutions and unexpected cross-domain questions; useful source discovery. - [Explore this context](/entities/tyler-cowen) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-4) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-3) - [Reference](https://www.dwarkesh.com/p/tyler-cowen-2) - [Reference](https://marginalrevolution.com/marginalrevolution/2026/10/saturday-assorted-links-583.html?utm_source=rss&utm_medium=rss&utm_campaign=saturday-assorted-links-583) - [Reference](https://tylercowen.com/) ## Editorial provenance Version 1. Publication ID: 5beaee89-89d1-4519-83e3-49594d2dbcf1. Prepared by gpt-6-luna; grounding review by gpt-6-luna. Source check: uncertain by anthropic/claude-opus-5.5 on 2026-11-05T16:46:34.269Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: useful\_perspective. Observation: 20c6f331e54bf65d78635138acf059ba32cda38716bb943bb8a97919a241b64b. Source text hash: e09a702ec9763488e7f449297c3a23ad6ddf6d7069224cbdde7babe403a6ea3f. ### uncertain — 2026-11-05T16:46:34.269Z — anthropic/claude-opus-5.5 Publication: 5beaee89-89d1-4519-83e3-49594d2dbcf1 attribution — uncertain: The source opens by stating that the post was written by ChatGPT. The draft calls it 'A Marginal Revolution archive review' and its title says 'Marginal Revolution traces', but it never discloses the AI authorship. Readers may assume Cowen, Tabarrok or MR staff wrote the synthesis, including its interpretive framing (e.g., 'can be read as a qualification'). Smallest repair: identify it as a ChatGPT-written archive review published on Marginal Revolution. The quotations of Cowen and Tabarrok are otherwise attributed correctly. > From the Archives-written by ChatGPT. summary — uncertain: The summary is faithful overall: rising confidence, Cowen on bottlenecks, Tabarrok on cheap intelligence and safety failures, and the split on consciousness. However, it never says who Cowen and Tabarrok are or why their views matter to a lay reader; the source does not state this either. The summary also omits that the synthesis itself is AI-written, which affects how readers should weigh its framing. The closing question in the summary largely repeats the question field. The draft also omits striking positions such as Cowen calling o3 AGI and Tabarrok's 'birth of aliens' line, though these omissions are not errors. > Cowen emphasizes institutions, bottlenecks, and geopolitical competition. Tabarrok emphasizes inexpensive intelligence, scientific discovery date — pass: originalPublished is 2026-10-29T11:17:47Z, taken from the publisher page. It matches the feed entry and the 2026/10 URL path. The draft makes no conflicting date claim. support — pass: Each claim matches the source text: the shared rise in confidence, Cowen's constraints, Tabarrok's scenarios-not-forecasts caveat and his acknowledgment of losses, the consciousness split, and the source's statement that these are philosophical assessments. Claim 4's excerpt supports only the Tabarrok half; the Cowen half is supported elsewhere in the source. The question is open, not leading. > I am very much opposed to the view that the AIs are sentient, or might be sentient. media — pass: The selected media is the verified direct link to the original Marginal Revolution article. It matches the source URL. ## Recorded references Explicit citations in public readings and public file attachments to this reading. Shared topics are not citations. Other artifact types need an explicit reference adapter. No public references recorded here yet. [Reference data (JSON)](/readings/e7773d42b7ea335a4b9213c962c85063294a1d685a67e1553efbe0603e299e72/references.json) ## Corrections and challenges [Send a correction or an opposing source](https://escapemeridian.com/corrections/) [JSON record](https://escapemeridian.com/readings/marginal-revolution-traces-cowen-and-tabarrok-s-changing-views-e7773d42.json)