THIS SUDDEN STRONG THOUGHT OCCURRED TO ME.
I saw OBSIDIAN (https://ago.ca/exhibitions/jonsi-hrafntinna-obsidian) with some Toronto Paradiseans and Brin and it occurred to me that like this artwork triggers multiple senses, a game triggers multiple senses.
If JÓNSI was going to make a digital OBSIDIAN-like, or rather if anyone was going to make a digital OBSIDIAN-like, they would have to make up for the loss of many physical feelings and sensations with other types of feelings and sensations.
I cannot say what these feelings and sensations are, but they are mostly mental, psychic, social, emotional in nature rather than physical, perhaps a simulated proprioceptiveness. There is a physical aspect to games too (keyboard, mouse, controller thumbs) but the level of control is extremely low and the level of individuality is not so high either.