Valve is working on [BCI technology that will solve motion sickness issues](https://uploadvr.com/valve-openbci-vr-motion-sickness-brain-computer/), and increase the immersion further (eventually to the sci-fi / Ready Player One level

Except thanks to [new lens technology, that's no longer the case](https://uploadvr.com/kopin-all-plastic-pancake-optics/). The industry is moving from expensive fresnel lenses towards pancake lenses, the Quest Pro and Pico 4 headsets that were

Yeah people are already doing it: https://uploadvr.com/modbox-gpt3-ai-npc-demo/ I think it'll be great for open world games, especially if the AI has some awareness of current events and a realistic amount of awareness