From the atom bomb to the microprocessor, physics produced many of the great transformations of the 20th century. In the 21st, a convergence of artificial intelligence, autonomous systems and quantum computing will yield even more profound changes. Professor Michael Biercuk, Professor Allison Macfarlane, Professor Hugh Gusterson, Professor Toby Walsh and Professor James Der Derian investigate the implications of quantum innovation for peace and security in the 21st century. Held as part of Sydney Ideas on 15 February 2018: https://sydney.edu.au/news-opinion/sydney-ideas/2018/strange-physics--drones--artificial-intelligence-and-quantum-com.html