Tonight was my 25th class reunion. I was talking to one of the spouses, who mentioned something about not knowing any of the people at the party, and I said, "that's ok, neither do I."
Except for the 2-3 close friends I have kept, most of my former classmates are not people I know, even if I was friends with them in high school. There are some that I know about through the magic of Facebook. But most - their families, their jobs, where they live - I know as much about them as I do about some of my neighbors or co-workers. It was really nice to get to know them again - or for the first time.