But there's another aspect of the abstract communication channels that only just occurred to me. Phone, email, text, Facebook, blogs only touch me if I choose. I don't have to answer the phone or log in. But in person communications are not under my control.
If the neighbors are having a quarrel when the weather is warm, I hear it. If one of the kids needs a bucket quickly, I learn about it whether or not I'd rather read the paper. I am not entirely master of all I survey when other people are nearby. Online I am. Milton's Satan would rather rule in Hell than serve in Heaven. (Insert your own comparisons between Hell and Facebook.) Now and then I feel like that too.