The book "The Quantum Thief" had an interesting take on this. In one of the communities in the book reality was mediated through strict and fine-grained privacy

The book "The Quantum Thief" had an interesting take on this. In one of the communities in the book reality was mediated through strict and fine-grained privacy controls (iirc at a cognitive level, all run somehow by the state.) You could agree to forget a conversation after having it, you could blur your face and mask your voice, that sort of thing. Recommended reading, if a little difficult at times.