I was really happy to see eye tracking in this list as I consider that a "gateway technology" that opens up a variety of additional really cool features. The bi

I was really happy to see eye tracking in this list as I consider that a "gateway technology" that opens up a variety of additional really cool features. The big one is probably foveated rendering [1] which both allows for a more natural look as well as (hopefully) more efficient visuals. 1 - https://www.youtube.com/watch?v=lNX0wCdD2LA https://www.youtube.com/watch?v=lNX0wCdD2LA