I actually had the chance to demo this tech last year and it was really interesting. They had a feature where if you wrote something on paper it was transcribed

I actually had the chance to demo this tech last year and it was really interesting. They had a feature where if you wrote something on paper it was transcribed to the computer. You could control the PC by tapping your thumb to your index finger or closing a fist. In hindsight it seemed stupid for meta to invest so much in AR/VR but the techn they release continues to get better.