Going back and re-reading short stories and articles that you wrote 20 years ago!
It is so weird. Not the writing, even, though it is really not that horrible -- I probably deleted the really bad stuff, but to read it almost as though it was written by someone else -- which in a way it was. I look at the date and know it was just a year before the divorce, with three kids ages 1,3,5 -- the changes that I've been through in the last twenty years, the stories I was writing, and also thinking what if I'd kept pushing myself to write and publish as hard as I was pushing then. Where would I be now, what would be different.
Like I said weird, really weird....