Chatbots are employed every day as teachers, counsellors, coders and escorts. Now they are taking on another role: salesmen https://www.economist.com/business/2026/04/19/why-your-ai-assistant-is-suddenly-selling-to-you?taid=bbb22f44-edfd-41a9-adf8-b885c58f1d39 Illustration: Fortunate Joaquin