My opinion? I began writing the stories that turned into Accelerando in 1998, largely to keep myself from having a work-induced nervous breakdown during the dot-com bubble. I finished it in 2003/04. It's journeyman work, and I like to think I'm both a better writer and a deeper/broader thinker than I was back then: it's no masterpiece, and I'm a little embarrassed by its staying power among the folks here.