Silicon Valley utopians are selling us dreams of outlandish autonomous cars and “smart” homes. They are teasing us with windowless planes and 3D-printed food. "Newspapers report breathlessly on companies working to “cure death.” We seem to swallow all of these publicity-friendly confections, to accept them as if the future were written and would be here soon enough. Yet we are still debating the role of social networks in steering real-world conversations."

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