"Of all china’s achievements in the past two decades, one of the most impressive is the rise of its technology industry. Alibaba hosts twice as much e-commerce activity as Amazon does. Tencent runs the world’s most popular super-app, with 1.2bn users. China’s tech revolution has also helped transform its long-run economic prospects at home, by allowing it to leap beyond manufacturing into new fields such as digital health care and artificial intelligence (ai). As well as propelling China’s prosperity, a dazzling tech industry could also be the foundation for a challenge to American supremacy."