I think eye tracking and facial cameras inside the goggles are key, but not as input. We will never be able to render a realistic avatar if it’s not picking up

I think eye tracking and facial cameras inside the goggles are key, but not as input. We will never be able to render a realistic avatar if it’s not picking up facial movements and eye focus. With a photo of the face and the ability to track muscle movements in the face around the eyes you can reproduce a realistic personal face with expressed expressions reflected in VR. As an input it feels like a limited utility thing - perhaps bring up information on the object focused on, but mental intent and eye focus are often not in line with each other - I might intend to do something with X but am monitoring Y and Z in the environment with my eyes while keeping X in partial focus.