While most of the world happily enjoys the Internet's free services such as Twitter, YouTube, Facebook and Google, in China these are either inaccessible or might become so in the following months.
And, as shown by Google's recent squabble with the Chinese government, it can be very hard to operate in the world's most populous country. But Twitter's Jack Dorsey has faith that Twitter will be able to operate in China, although it's currently blocked by the government.
At a New York panel discussion on social media and digital activism, Chinese activist Ai Weiwei asked Dorsey whether he can promise availability of Twitter in China. Dorsey said: "I would say yes. It's just a matter of time." Weiwei called this answer "very philosophical"; knowing that a giant like Google has trouble securing its presence in China, a cautious answer like this by a much smaller Twitter instills little confidence.