The great temptation of Big Data is that we can stop worrying about comprehension and focus on preventive action instead. Instead of wasting precious public resources on understanding the 'why' - i.e., exploring the reasons as to why terrorists become terrorists - one can focus on predicting the 'when' so that a timely intervention could be made.

Personalization can be very useful in some contexts but very harmful in others. Searching for pizza online, it's probably OK to keep showing the same pizza shop as your No. 1 choice. I don't see any big political consequences out of that.

The great temptation of Big Data is that we can stop worrying about comprehension and focus on preventive action instead. Instead of wasting precious public resources on understanding the 'why' - i.e., exploring the reasons as to why terrorists become terrorists - one can focus on predicting the 'when' so that a timely intervention could be made.

There are good reasons why we don't want everyone to learn nuclear physics, medicine or how financial markets work. Our entire modern project has been about delegating power over us to skilled people who want to do the work and be rewarded accordingly.

Contrary to the utopian rhetoric of social media enthusiasts, the Internet often makes the jump from deliberation to participation even more difficult, thwarting collective action under the heavy pressure of never-ending internal debate.

I'm active on Twitter, and I love my iPad and my Kindle.

Technology changes all the time; human nature hardly ever.