In 2020, Lennox published 2084 – Artificial Intelligence and the Future of Humanity, which covers key developments in technological enhancement, bioengineering and AI. In the book, he discusses the current state of AI – its benefits, dangers and future implications. Over the past 15 years, Lennox has been part of numerous public debates defending the Christian faith, including debates with Christopher Hitchens, Michael Shermer and Richard Dawkins.