It is crazy to think that computers are going to become something so complex as Ray Kruzweil and Bill Joy are talking about. I fell like both of them are talking about very extreme cases but one day it might be possible that these kind of things could happen. I think that Bill Joy tends to right except for the idea that one day these machines might take over the world we live. Many of the things that Ray Kruzweil well mentioned aren't very likely to take over the life we live rather they enhance that we already experience. Some of the things Kruzweil do seem very strange though and I personally wouldn't want to experience them but one day they may just become popular culture like he is saying.
Societies concern should be on the use and ethics behind many of things that come out. For instance the internet was a great invention but many bad things get connected to it like credit card theft, identity theft, child predators and a constant stream of advertisement. I think that it the future may people will use these things for their own purposes and will take way from the purpose of the kinds that are invented. Imagine having a image cast onto your retina like Kruzweil but in the corner of your vision having a Coca-Cola or Visa ad in your sight every where you go.
