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. In Sentientist Conversations we talk about the two most important questions: “what’s real?” & “who matters?” Sentientism is "evidence, reason & compassion for all sentient beings." The video of our conversation is ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠here on YouTube⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠. We discuss: 00:00 Clips! 01:00 Welcome 03:34 Jon's Intro - Molecular biology PhD - Ethicist - Writing "The Battle for Compassion" and "The Tango of Ethics" - Running the "think and do tank" OPIS (Organisation for the Prevention of Intense Suffering) "Trying to put the ideas into practice"  04:41 What's Real? - A scientific family, physicist father - "A naturalistic, mechanistic way of thinking about the world" - "It's not that there was no #spirituality at all... a #Jewish household that was more traditional than religious... Reciting things that I didn't necessarily understand the meaning of" - "...a brief phase where I did take things [religious prescriptions] more literally... but that didn't last very long" - "Seeing the world as inherently physical" - "Not to say that the subjective doesn't matter... the subjective is the essence of what matters" - Maternal grandfather "I remember him describing himself as a Humanist... his way of saying 'don't take the supernatural too seriously'" - "I think spirituality is an important part of life... but I don't think of spirituality in the supernatural sense... I think of spirituality in terms of the experience... a feeling that there is an intense meaning possible in life." - "During spiritual experiences we might suspend the very rational perspective. You can't really be fully plunged into a spiritual experience if you're also trying to analyse things scientifically at the same time." - In circles with people, lighting a fire, reciting poetry... "it feels like a source of meaning at times to get into that other state of mind." - "It's this dance between two very different perspectives" - "How do we reconcile the need to understand reality as accurately as possible using the tools of rationality and science and how do we also extract meaning from our existence?" - JW: Instead of a scientistic denial or a mystical reification of the subjective... a recognition that our subjective experiences are part of the objective world we all share... and are the source of its value - Subjective experience is determined by the physical "but you won't actually know what it's like... without having experienced it yourself" 13:25 What Matters? - "Subjective experience... it's the most important part of reality... the only part of reality that really matters when it comes down to ethics..." 46:40 Who Matters? 01:03:37 How To Make A Better World? 01:19:43 Follow Jon and OPIS - https://www.jonathanleighton.org/ - https://www.preventsuffering.org/ ...and much more. Full show notes at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Sentientism.info⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠. Sentientism is “Evidence, reason & compassion for all sentient beings.” More at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Sentientism.info⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠