87 people. Probably far too high. But maybe over a year 87 different people fade in and out of a group. But those 87 people know and talk to 100 other people e

87 people. Probably far too high. But maybe over a year 87 different people fade in and out of a group. But those 87 people know and talk to 100 other people each,that's 10% of the city. Go two degrees of separation and it's the whole town. Students in a town generally only know other students. Students are actually pretty secluded. But normal people? They know their families, they know their friends, they know their colleagues, the people they do their hobbies with, their local shop owners, the people in their local Baby groups, the other parents in their schools, the people who the volunteer with, etc. It's about how ideas spread, not about how many people are in one group.