Partly because when you have concentrated peopleness? a) you don't have to travel as far to go to the gatherings of people you DO want to physically go to - opera, chorus rehearsal, church, fine dining, local RPG group, gym, etc. - and b) there's rather more chance that things that you do want to participate in physically are near you and easier to actually _find_. The Solarian ideal of isolation and viewscreens misses some things.
no subject
--Dave