Isaac Newton is best known for his theory of gravity. And yet, the great scientist also insisted: "the cause of gravity is what I do not pretend to know.” In other words, notions like gravity, and force in general, are deeply mysterious phenomena. In this episode of the Sheldrake-Vernon Dialogues, Rupert Sheldrake and Mark Vernon ask just what gravity might be. The conversation begins with a feature of gravity that is typically overlooked by physicists, namely that gravity has a speed. According to the physicist Tom van Flandern, the speed of gravity is at least **20 billion times faster than light**! https://www.intalek.com/Index/Projects/Research/TheSpeedofGravity-WhattheExperimentsSay.htm They consider how gravity might be linked to the notion of levity, a link that can be renewed again. Newton himself was inclined to regard gravity as the divine will in the cosmos and was also influenced by the belief in daemons, particularly the entity called Eros or love. These are go-betweens in the universe, in the case of Eros, attracting all things and securing the many as a whole. Panpsychism and final causes are other themes that arise. Contemplating the mysteries of modern science, often hidden in plain sight, leads naturally to deeply meaningful considerations about the nature of the world in which we live. ------ Dr Rupert Sheldrake, PhD, is a biologist and author best known for his hypothesis of morphic resonance. At Cambridge University, as a Fellow of Clare College, he was Director of Studies in biochemistry and cell biology. As the Rosenheim Research Fellow of the Royal Society, he carried out research on the development of plants and the ageing of cells, and together with Philip Rubery discovered the mechanism of polar auxin transport. In India, he was Principal Plant Physiologist at the International Crops Research Institute for the Semi-Arid Tropics, where he helped develop new cropping systems now widely used by farmers. He is the author of more than 100 papers in peer-reviewed journals and his research contributions have been widely recognized by the academic community, earning him a notable h-index for numerous citations.  On ResearchGate his Research Interest Score puts him among the top 4% of scientists. https://www.sheldrake.org/about-rupert-sheldrake?svd=84 ------ Dr Mark Vernon is a psychotherapist and writer with a rich academic background in physics, theology, and philosophy. He contributes to programmes on the radio, writes and reviews for newspapers and magazines, gives talks and podcasts. His books have covered themes including friendship and God, ancient Greek philosophy and wellbeing. His new book, out August 2019, is "A Secret History of Christianity: Jesus, the Last Inkling and the Evolution of Consciousness". He has a PhD in ancient Greek philosophy, and other degrees in physics and in theology, and works as a psychotherapist in private practice. He used to be an Anglican priest. Mark's latest book is... A Secret History of Christianity: Jesus, the Last Inkling, and the Evolution of Consciousness http://www.markvernon.com/books/a-secret-history-of-christianity?svd=84