Background
Paul Graham is a well-known Silicon Valley investor, essayist, and co-founder of Y Combinator, the startup accelerator that backed companies like Airbnb, Dropbox, and Stripe. He frequently posts on X (formerly Twitter) about art, design, and history, not just tech. Here he's commenting on a portrait by the British painter Thomas Lawrence (1769–1830), who was known for his flamboyant, virtuosic style and served as President of the Royal Academy. The "he" in the post refers to Lawrence: Graham is remarking that this painting comes from the peak of the artist's career, when his technical skill and reputation were at their highest.