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Before I get into their blockchain products, what is a blockchain? Well according to billionaire investor Warren Buffett, Bitcoin, a cryptocurrency built on the blockchain, is “probably rat poison squared.” His harsh view isn’t rare: Amazon Web Services CEO Andy Jassy, discussing blockchain, has said that AWS does not “build technology because we think it is cool,” and JPMorgan Chase CEO Jamie Dimon called Bitcoin “a fraud” claiming it is “worse than tulip bulbs,” referring to the tulip mania of the 17th century. (Dimon later said he regretted the statement.)

Behind the progress is China's commitment to one-on-one talks with the parties concerned in South China Sea disputes as well as ASEAN countries' agreement with China's statements, Su said.

Beijing and Tianjin both contributed a lot of help.

Beijing started as an industrial base, but is shaking off its old image to become a science-savvy international metropolis

Beijing, Shenzhen, Shanghai and Guangzhou are home to the biggest number of empty-nesters. They are young singles who live alone to work usually in cities.