Musk also teases the audience with a photo of a self-driving truck at a prestigious TED Conference in Vancouver

WATCH Musk @ TED: A sneak peek into tunnel networks for cars

Pope expresses hope that science and technology innovations would come with social equality and inclusion

WATCH TED talk: Pope urges tech industry to be more compassionate

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WATCH Musk @ TED: A sneak peek into tunnel networks for cars

WATCH TED talk: Pope urges tech industry to be more compassionate