Jonathan is an ethics strategist, writer, social change advocate and public speaker, He is Executive Director of the Organisation for the Prevention of Intense Suffering (OPIS), a Swiss-based think-and-do tank that promotes the prevention of human and non-human suffering as our overriding global ethical priority. His book, The Battle for Compassion: Ethics in an Apathetic Universe, explores the question "What matters?". His new book The Tango of Ethics: Intuition, Rationality and the Prevention of Suffering goes further in proposing a rigorous reassessment of how we think about ethics.
Jonathan is non-religious and has a naturalistic worldview. He is vegan and has a sentiocentric moral scope.