All was going to plan. Zuckerberg had displayed a welcome humility about himself and his company. And then he described what really excited him about the future—and the familiar Silicon Valley hubris had returned. There was this promising new technology, he explained, a brain-computer interface, which Facebook has been researching.
The idea is to allow people to use their thoughts to navigate intuitively through augmented reality—the neuro-driven version of the world recently described by Kevin Kelly in these pages. No typing—no speaking, even—to distract you or slow you down as you interact with digital additions to the landscape: driving instructions superimposed over the freeway, short biographies floating next to attendees of a conference, 3D models of furniture you can move around your apartment.
The Harvard audience was a little taken aback by the conversation’s turn, and Zittrain made a law-professor joke about the constitutional right to remain silent in light of a technology that allows eavesdropping on thoughts. “Fifth amendment implications are staggering,” he said to laughter. Even this gentle pushback was met with the tried-and-true defense of big tech companies when criticized for trampling users’ privacy—users’ consent. “Presumably,” Zuckerberg said, “this would be something that someone would choose to use as a product.”
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