Wu Yongping is one of the Chinese mainland’s leading specialists on Taiwan affairs and dean of the Institute for Taiwan Studies at Tsinghua University in Beijing. Here he shares his views on signals from the Xi-Trump summit, and discusses peaceful reunification between the mainland and Taiwan and how it could be achieved. SCMP Plus readers get early access to articles in the Open Questions series. How should we read President Xi Jinping’s message to Donald Trump on the Taiwan question during the