Tensordyne is a start‑up that creates semiconductor components. The devices are intended to give artificial‑intelligence workloads in data centres a performance boost. To achieve this, the company draws on a technique that dates back four centuries. The method, described as a centuries‑old trick, is applied to the chip design process. Co‑founder Gilles Backhus explains how the historical approach is integrated into modern hardware. The explanation aims to show how the old method can help current AI systems run more efficiently.