OpenAI model claims proof of Navier–Stokes singularity, reviving fluid-dynamics debate
OpenAI announced that its most advanced AI model produced a mathematical proof that the Navier–Stokes equations, which describe fluid flow, can generate a singularity — a point of physically impossible infinite speed. Mathematician George Karniadakis calculated that for air this breakdown occurs at a vortex width of about 70 nanometres, roughly the distance a molecule travels before colliding with another.
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The result highlights a known limitation of the Navier–Stokes framework, which treats fluids as continuous rather than made of discrete molecules, an assumption that fails at extremely small scales. It also raises broader questions about AI's growing role in solving major unsolved mathematical problems, including issues of credit, originality, and reliance on unpublished human research.
- OpenAI's model reportedly proved a singularity exists in the Navier–Stokes equations under specific vortex conditions.
- The breakdown occurs at scales so small that the continuous-fluid assumption no longer holds, around 70 nanometres for air.
- The claim has sparked debate over AI's mathematical capabilities and how such achievements should be credited.
Source: nature.com — Jones, 2026-09-18
Published there as: “AI cracked the Navier–Stokes challenge. What does that mean for physics?”
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