Yik Wai Chee doesn’t think of himself as a believer. The 33-year-old senior executive at a Malaysia-based AI company is the kind of person who deals in data and decision-making frameworks, not destiny. Yet for years, he has consulted bazi, the ancient Chinese system of elemental forecasting, as a kind of strategic gut check on his life. “For me, it is just a long-term ‘luck check’ to see if there are general strategies I can adapt to get through some life challenges,” he said. “If it doesn’t...