As the U.S. and China respectively prioritize advances in the same strategic technologies, innovations may take place simultaneously, and diffusion may occur almost instantaneously. As China has become a global leader in multiple critical technological domains—including unmanned systems, hypersonic weapons, artificial intelligence, and quantum information science—indigenous Chinese innovation, rather than simply its rapid expropriation and effective emulation of foreign advances, also has the potential to prove highly disruptive. Under these conditions, neither the U.S. nor China is likely to achieve or maintain an enduring technological advantage.