H e’s known as the rock star chief executive, renowned for his trademark leather jackets and unconventional approach to business. For a while, Jensen Huang’s persona was confined to tech conferences and Nvidia board meetings. But with the rise of AI – and his pivotal role at its forefront – Huang is now a frequent fixture on the global stage, appearing alongside world leaders and before crowds chanting his name, demanding selfies and autographs on their chests .

Today, Huang is on TV screens and front pages around the world after admitting to an affair with a suspected Chinese spy.…