Stephen, a vocal advocate for AI's purpose and ethics, recently participated in an art installation called Vocalize at Hay Festival, where an AI-powered version of his voice confronted the future of AI, identity, and truth. Visitors were given a voiceover training session led by the AI, but things took an unexpected turn. This event came two years after Stephen discovered that an AI recording of his voice had been created without his knowledge. He previously expressed shock upon learning that his recordings of Harry Potter audiobooks had been used to recreate his voice with AI in 2023.