In Episode 6 of ‘Conversations with Neighbours,’ we ask what do lines of flight reveal of our shared planetary futures? We ponder on the speculative histories of ‘Black flight’ with Zimbabwean architectural designer and researcher, Thandi Loewenson; we travel from Cape Town to Nagasaki, with South African architect and writer, Ilze Wolff, in search of health, care and Black peace on earth; and with Angolan composer, Victor Gama, we trace the arc from Thomas More’s Utopia to apartheid South Africa’s nuclear weapons programme in the unfinished work of anthropologist Augusto Zita.