Excerpt: Sherry Turkle is a singular voice in the discourse about technology. She’s a skeptic who was once a believer, a clinical psychologist among the industry shills and the literary hand-wringers, an empiricist among the cherry-picking anecdotalists, a moderate among the extremists, a realist among the fantasists, a humanist but not a Luddite: a grown-up. She holds an endowed chair at M.I.T. and is on close collegial terms with the roboticists and affective-computing engineers who work there. Unlike Jaron Lanier, who bears the stodgy weight of being a Microsoft guy, or Evgeny Morozov, whose perspective is Belarussian, Turkle is a trusted and respected insider. As such, she serves as a kind of conscience for the tech world.