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.

Smart technologies are not just disruptive; they can also preserve the status quo. Revolutionary in theory, they are often reactionary in practice.

As economic life relies more and more on the Internet, the potential for small bands of hackers to launch devastating attacks on the world economy is growing.

The Internet can empower groups whose aims are in fact antithetical to democracy.

Dictators aren't stupid, or regimes could be toppled easily by young people mobilizing on Facebook.

You actually see liberals checking 'Fox News,' if only to know what the conservatives are thinking. And you're seeing conservatives who venture into liberal sources, just to know what 'The New York Times' is thinking.

Simply getting a country's population online is not going to trigger a revolution in critical thinking.