Universities ought to be aware of the degree they would want to accept funding from governments like China to work on, say, face recognition technology.

Sleephackers go to bed with sensors on their wrists and foreheads and maintain detailed electronic sleep diaries, which they often share online. To shift between sleep phases, sleephackers experiment with various diets, room and body temperatures, and kinds of pre-sleep physical exercise.

iPod liberalism [is] where we assume that every single Iranian or Chinese who happens to have and love his iPod will also love liberal democracy.

Making loans accessible to millions of the previously unbankable customers is a noble goal. Getting them hooked to such loans isn't.

If we don't like rent control, we ought to oppose it on political and social grounds - and not just by arguing that, thanks to smartphones and social networks, we can create new, more efficient markets for matching short-term renters with tenants.

The Internet has made it much more effective and cheaper to spread propaganda.

I'm rarely invited to start-up parties, but who cares about their trinkets and apps anyway?