By 2050, 6 billion people could be living in cities—how should the challenges caused by rapid urbanization be handled in the world ahead? Film supported by Mission Winnow Read our latest coverage on the world ahead: https://econ.st/3HKVWO9 | The Economist

The ancient Chinese compared masses to water and rulers to ship, highlighting people's power over rulers and stressing the need for rulers to respect the conditions and feelings of the people they govern. Beijing is a megacity of over 20 million people, who naturally face various problems that the government strives to address. Since 2019, Beijing has integrated 16 districts, 343 townships, 65 municipal departments and 49 enterprises and public institutions that provide public services into the