Removed from 'Gmail' doesn't necessarily mean removed from all Google servers. In fact, your old emails are the data set from which Google models our behaviors - the real product it is offering its advertisers.

Global warming, you don't win it. It's this weird steady-state issue that's going to be with us for a few thousand years.

Google did a great job hacking the Web to create search - and then monetizing search with advertising. And Apple did a great job humanizing hardware and software so that formerly daunting computers and applications could become consumer-friendly devices - even a lifestyle brand.

People are seduced by signals from the world, but that is manipulation, not reality. Computers have learned more about us than we've learned about them.

I am much less concerned with whatever it is technology may be doing to people that what people are choosing to do to one another through technology. Facebook's reduction of people to predictively modeled profiles and investment banking's convolution of the marketplace into an algorithmic battleground were not the choices of machines.

It feels as if ever since the iPhone was released, the Macintosh computer has become just another leverage point in this other operating system's marketing plan.

Computers don't kill books; people do.