Trip.com cofounder James Liang has a blunt warning for aging economies: Without more children, their ability to innovate will soon stall. “We need more people to innovate. That is why population and having children is important,” he said in an interview with Fortune earlier this year. “If we have a declining population, not only will our ability to innovate diminish, but we will lose our capacity to stay in control of innovation itself.” It’s part of a broader philosophy he’s dubbed “innovationism,” a tech-forward view of how society should be organized, and one that’s closely related to his longtime academic focus on population and demographic change. In Liang’s view, more people means more talent to put towards progress. “At the aggregate level, the amount of human resources put into res