Explore the potential future of gaming through Brain-Computer Interfaces (BCIs) in this 2019 GDC talk by Valve's Mike Ambinder. Delve into the world of BCI research and its applications for game developers, covering topics such as physiological signal acquisition, current generation interfaces, and control schemes. Discover how BCIs could revolutionize player experiences through adaptive gameplay, emotion recognition, and direct human-system interactions. Learn about the challenges and potential improvements in game design, including adaptive enemies, teammates, and rewards. Examine the possibilities of removing traditional input devices and directly translating human intent into system responses. Consider the implications of brain stimulation in gaming while acknowledging the challenges and caveats of this emerging technology.