Sarah Perez writes:
… Berners-Lee began his keynote by discussing the improvements we’ve seen in technology in recent years, most notably the ability of our devices to be location-aware. However, he says, “location-awareness is just the tip of the iceberg.” Devices already know so much about you: your geographical position, which way is up, which direction you’re headed, etc., but future devices may know more than this. For example, they may know about your medical information and your physical state. Perhaps they could tell when you’re excited by measuring heart rate increases, he said.
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