At JavaOne, I remember seeing Bill Joy predicting that $1T of wealth creation was going to grow to $10T. I think this was in 1999. A few years later, he warned

At JavaOne, I remember seeing Bill Joy predicting that $1T of wealth creation was going to grow to $10T. I think this was in 1999. A few years later, he warned that nanotech may turn us into grey goo. [I may be exaggerating a bit] Birth of a pessimist?