At a recent ceremony for world leaders in Beijing, the hot microphone chose a sudden exchange between Vladimir Putin and Sheikh Jinping about the possibility of living up to 150. Putin suggested that the secret might lie in the recurrent organ transplants. But is this the new boundaries of anti -aging or marginalized and unprofitable theory? To find out, Ian’s editor -in -chief of science talks to the Russian Affairs correspondent Pjotr Sauer and to John S Tregoning, Professor of Immunology in vaccines at Impierial College London and author of Live Forever: a curious global guide for wellness, aging and death