Listen to this AI voice clone of Bill Gates created by Facebook's engineers

We're headed for a revolution in computer-generated speech, and a voice clone of Microsoft founder Bill Gates demonstrates exactly why. In the clips embedded below, you can listen to what seems to be Gates reeling off a series of innocuous phrases. "A cramp is no small danger on a swim," he cautions. "Write a fond note to the friend you cherish," he advises. But each voice clip has been generated by a machine learning system named MelNet, designed and created by engineers at Facebook.