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For its wearable computer to be accepted, Google must convince people that the device isn’t creepy.
The charming automated assistant in Spike Jonze’s new movie isn’t realistic. But if they were designed thoughtfully, computerized interlocutors could make us better people.
Bitcoin itself may fail as a currency, but the underlying technology is beginning to suggest valuable new applications.
Though still volatile, Bitcoin is surging in value and being spent more freely; it’s also inspired a legion of competitors.
Aquion manufactures cheap, long-lasting batteries for storing renewable energy.
A 1985 essay saw hope—and immense challenges—for systems that might allow paralyzed people to walk again.