Personally, I think he's way too optimistic about how future tech will be used. And he rarely has good reasons. Stuff like foglets https://en.wikipedia.org/wiki/Utility_fog He didn't invent the idea of the foglet, he just believes for some reason that people won't abuse them. Also in his book he posits that the Singularity will be nice to people who choose not to join it. His only reason is that he's pretty sure the Singularity will like humans.