Law professor. New Yorker. Co-author & admin, Open Source Property. Research and teaching focuses on IP and Technology Law, Property, and Legal Theory.https://bsky.app/profile/jnsheff.bsky.socialhttps://bsky.app/profile/jnsheff.bsky.social/post/3mvjlo3szkk2c"A familiar future, yet stupid." About as good a description as any. [contains quote post or other embedded content]15 Sep 2026 02:35 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mvjlo3szkk2chttps://bsky.app/profile/jnsheff.bsky.social/post/3mvic5vefwk25I'll be presenting a keynote at Clemson's Law and Society Symposium next week. The symposium addresses legal and philosophical issues raised by AI. My lecture is organized around the question: "What Is Intelligence For?" If you're in the area, I hope you'll attend. https://jeremysheff.com/2026/09/14/ai-law-and-society-at-clemson/14 Sep 2026 14:12 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mvic5vefwk25https://bsky.app/profile/jnsheff.bsky.social/post/3mvdi4biinc2eThe first element of this strategy (external private monitors against systemic social risk) was tried in the aughts with credit rating agencies in the mortgage-backed securities market. It failed. https://darioamodei.com/post/we-must-pace-the-frontier12 Sep 2026 16:16 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mvdi4biinc2ehttps://bsky.app/profile/jnsheff.bsky.social/post/3mtuhzzey4c2aExplaining Markov models on the first day of Artificial Intelligence Law. With @klonick.bsky.social .24 Aug 2026 23:39 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mtuhzzey4c2ahttps://bsky.app/profile/jnsheff.bsky.social/post/3mtjco23fas2vNew Paper Alert: The Japan Trademarks Dataset: An open-access, comprehensive dataset on the trademark registration system of Japan. Paper forthcoming in the Journal of Law and Empirical Analysis (JLEA) https://jeremysheff.com/2026/08/20/new-paper-alert-the-japan-trademarks-dataset/20 Aug 2026 13:04 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mtjco23fas2vhttps://bsky.app/profile/jnsheff.bsky.social/post/3mnydnfrnks2xIllegal fireworks launch from the sidewalks to burst over the rooflines of Harlem, orange and blue.The NYPD cruiser double-taps its siren at the screaming revelers spilling out into the streets, and its bullhorn deadpans, "Knicks in five." New York loves New York.11 Jun 2026 04:00 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mnydnfrnks2xhttps://bsky.app/profile/jnsheff.bsky.social/post/3mnsxrbzcy22l09 Jun 2026 00:44 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mnsxrbzcy22lhttps://bsky.app/profile/jnsheff.bsky.social/post/3mnnklslrq22gNew Yorkers propose edits to AI company's subway ad campaign.06 Jun 2026 21:05 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mnnklslrq22ghttps://bsky.app/profile/jnsheff.bsky.social/post/3mlqmzvpeyc2fImportant thread. mRNA-based treatments are, as predicted, showing promise as a clinical tool to prevent or significantly delay cancer deaths. Addressing honest but underinformed skepticism while defending good science against bad-faith charlatans will be crucial to realizing that promise. [contains quote post or other embedded content]13 May 2026 15:36 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mlqmzvpeyc2fhttps://bsky.app/profile/jnsheff.bsky.social/post/3mks42gr5us2vChris brings up an important piece of SCOTUS reform that I’ve written about before. The judges who grant cert should *not* be the ones who decide the merits. Ideally the cert bench would choose cases for the *next* merits bench *before* its members are selected. http://cardozolawreview.com/wp-content/uploads/2022/01/8_SHEFF.42.MI_.10.Done_.pdf [contains quote post or other embedded content]01 May 2026 12:13 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mks42gr5us2vhttps://bsky.app/profile/jnsheff.bsky.social/post/3mknlpsa5gs2wJohn Roberts has been happy to serve as the respectable, mild-mannered face of revanchist American racism for my entire life. I'm sure he imagines himself the clear-eyed, even-handed steward of a racially fractured society. But I doubt he can imagine a society where that isn't his prerogative. [contains quote post or other embedded content]29 Apr 2026 17:10 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mknlpsa5gs2whttps://bsky.app/profile/jnsheff.bsky.social/post/3mkdllxwgts2cA famous CompSci conjecture involves problems that are difficult to for computers to solve but whose solutions are easy for computers to verify. Workplace AI seems to have created the inverse: problems that humans can easily solve but whose computer-generated solutions are hard for humans to verify. [contains quote post or other embedded content]25 Apr 2026 17:41 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mkdllxwgts2chttps://bsky.app/profile/jnsheff.bsky.social/post/3mk3kbpg6zc2hAnd now there are AI hallucinations in a bankruptcy court filing by lawyers at S&C. These lawyers' clients have to wonder what exactly it is they're paying for. https://www.nytimes.com/2026/04/21/nyregion/sullivan-cromwell-ai-hallucination.html?unlocked_article_code=1.c1A.wmtO.NFuFpWiWzkK2&smid=url-share [contains quote post or other embedded content]22 Apr 2026 12:56 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mk3kbpg6zc2hhttps://bsky.app/profile/jnsheff.bsky.social/post/3mjp5l7plt22eVery excited to be hosting the @stjohnslawiplc.bsky.social Intellectual Property Law and Philosophy (IP/LaP) Workshop at @stjohnslaw.bsky.social today. We've got a great lineup of papers (https://www.stjohnslawiplc.org/events/2026/4/17/nyc-ip-law-and-philosophy-workshop-iplap).17 Apr 2026 14:37 +0000at://did:plc:synrwvjm4v3ifwpndxx7nwmo/app.bsky.feed.post/3mjp5l7plt22e