In the 80's I was in elementary school, and was working with the CO and some high schoolers. Everyone was talking about graduation, and whether the world would end before they graduated (mostly a year or two. When they got to me, and realised that it was nine years away everyone was like "NO WAY THIS SYSTEM WILL STILL BE HERE!" Of course, this was when the expiration date on the system was 80 years from 1914, before the overlapping generation BS.
Well, I just ran into a girl I graduated with last week and we not only graduated on time, but she has an 18 year old and a 16 year old kid. 18 year old is in college and the younger one graduates next summer. And guess what? In 20 years, their kids will be graduating too!.