Michael Abrash gave a great talk later in the presentation about future directions in VR. He talked about retina tracking in the context of foveated rendering,

Michael Abrash gave a great talk later in the presentation about future directions in VR. He talked about retina tracking in the context of foveated rendering, which he said has a higher accuracy requirement than avatar eye direction. He seemed confident we'll get there. https://m.youtube.com/watch?v=Mv_eIRv1Vk4 https://m.youtube.com/watch?v=Mv_eIRv1Vk4