Losing Touch

Do you ever think about all of the people that you've completely lost touch with?  Those who you used to see each and every day.  The classmates with whom you ate lunch with every day in high school or a specific group of friends that you would often spend the weekends with.  The people who you were on numerous clubs or sports or organizations with. Thanks to the internet and social networks, some of these people aren't completely lost in our memories, reappearing periodically on our Facebook or Twitter news feeds.  Yet others, those who we didn't happen to "friend" on Facebook years ago, those who, for all we know, could have fallen off the face of the earth, are a complete and utter mystery.  What are these classmates/friends/acquaintances/teammates doing with their lives now-a-days?  Do they have jobs? Husbands/wives? Maybe even at this point in our lives, children of their own?  It's sort of sad that you can be so close to someone for a semester, a year, or even years and years, and then completely lose all relations and communications with them.  Sometimes I wonder what it would be like if these people didn't gradually (or abruptly, I suppose) fade away in my life.  Unless they somehow reappear in it, I'll never know.