Computer scientist who worked on search at Google and Tencent, known in China for his popular books 数学之美, on the mathematics behind search engines, and 浪潮之巅, on the rise and fall of tech companies.
At Google he worked on the search algorithms for Chinese, Japanese and Korean. From 2016 he wrote 硅谷来信 'Letters from Silicon Valley', a daily column on the 得到 app that ran to 384 letters.