How did we get here?
I'm typing this on my MacBook Pro, a laptop that is a gazillion times more powerful and "pro" than the towering, whirring, always-freezing-up computers I used back in grad school. In fact, my iPad is much faster on many applications than the Dell laptop I carted around five years ago. (Check out Dan's great post from February on a related topic.)
For a little wisdom on the early days of computing and the accelerated pace of change, have a look at this clip of a BBC documentary from the early 1990s.