With D-day commemorations giving us images of "the finest generation" and discussion about how parties are targeting different age groups in the UK election, Anne McElvoy hosts a discussion looking at what divides and unites us in a fracturing world. Dr Eliza Filby - a historian of generational evolution and contemporary values and author of Inheritocracy and Generation Shift gives us the low down on boomers to Gen Alpha. Professor Rana Mitter is ST Lee Chair in US-Asia Relations at the Harvard Kennedy School and author of books including China's Good War: How World War II is Shaping A New Nationalism and China's War with Japan, 1937-1945: The Struggle for Survival. A presenter of Free Thinking on BBC Radio 3 before he joined Harvard, you can find him hosting plenty of Free Thinking discussions. Jo Hamya's debut novel was called Three Rooms. The Hypocrite explores what happens when we become frightened of the generations below us Tom Simpson is Associate Professor of Philosophy and Public Policy at the Blavatnik School of Government, University of Oxford and a Senior Research Fellow at Wadham College. And joining the conversation to talk about how the political parties are trying to woo voters of different ages is Gaby Hinsliff, columnist for The Guardian Producer: Luke Mulhall