We’re not in the business of writing regularly about “fake” news, but it’s hard not to be concerned about the kind of mimicry technology is making possible. First, researchers developed deep learning-based artificial intelligence (A.I.) that can superimpose one person’s face onto another person’s body. Now, researchers at Chinese search giant Baidu have created an A.I. they claim can learn to accurately mimic your voice — based on less than a minute’s worth of listening to it.