It's true that virtually all new technologies do trigger what sociologists would call 'moral panics,' that there are a lot of people who are concerned with the possible political and social consequences, and that this has been true throughout the ages.

I have no problem with technological solutions to social problems. The key question for me is, 'Who gets to implement them?' and, 'What kinds of politics of reform do technological solutions smuggle through the back door?'

Truly smart technologies will remind us that we are not mere automatons who assist big data in asking and answering questions.

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 reason why there is more pessimism about technology in Europe has to do with history, the use of databases to keep track of people in the camps, ecological disasters.

As befits Silicon Valley, 'big data' is mostly big hype, but there is one possibility with genuine potential: that it might one day bring loans - and credit histories - to millions of people who currently lack access to them.

The decentralized nature of online conversations often makes it easier to manipulate public opinion, both domestically and globally. Regimes that once relied on centralized systems of media control can now deliver ideological messages more subtly, with the help of little-known intermediaries like anonymous commenters on websites.