Eduardo Paes

Smart cities are those who manage their resources efficiently. Traffic, public services and disaster response should be operated intelligently in order to minimize costs, reduce carbon emissions and increase performance.

Google is omniscient of what people search for and do. Facebook has over a billion subscribers, meaning Mark Zuckerberg has personal information about one in every seven people on Earth. U.S.A., Brazil, Mexico, India and Indonesia are at the top of that list.

There is no time and space in the digital world. People chat and collaborate through social networks. Cultural icons garner millions of fans online in locations they have often never been themselves. The boundary between public and private life is now everyone's business.

I want to tell mayors, county chiefs and heads of big companies: don't just chase GDP growth; don't chase the biggest profits at the expense of our children and grandchildren and at the cost of sacrificing our ecological environment.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.