Truth Check/28 September 2026
“Claude computed a nine-loop amplitude no physicist had reached by direct calculation”
The claim as it travelled: Anthropic guest post, 25 Sept 2026.
Holds
The claim holds against the page that produced it.
Anthropic's guest post by Matt von Hippel describes the nine-loop result and says Lance Dixon, who held the eight-loop record, checked it himself.
- Checked Against
- anthropic.com ↗Primary
- Read the Check
- One prompt, a week alone, and a physics record
Claude's nine-loop result and what Lance Dixon says about being scooped; the 'tens of thousands of AI security incidents' claim against the ten on the record; and the five-line incident brief to run on any vendor before you renew.
Every claim we have checked, in the Ledger.
Every claim checked against the page that produced it.
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