Comedian Ari Shaffir performs at the 2015 Bonnaroo Music and Arts Festival in June in Manchester, Tenn. Shaffir has said fellow comedian Carlos Mencia stole his joke about who would build a fence on the U.S.-Mexican border. Copyright on jokes is difficult to prove, and it turned out two other comedians had made similar jokes as well. John Davisson/Invision/AP hide caption

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Apple's senior vice president of Internet Software and Services Eddy Cue speaks about Apple Music during the keynote at the annual developers conference. Justin Sullivan/Getty Images hide caption

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Video game designer Shigeru Miyamoto introduces Nintendo's Super Mario Maker at the Electronic Entertainment Expo in Los Angeles in 2014. Jae C. Hong/AP hide caption

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An attendee at the Electronic Entertainment Expo in Los Angeles plays Sony's Project Morpheus London Heist video game with a virtual reality headset and Move controllers. Lucy Nicholson/Reuters/Landov hide caption

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Apple CEO Tim Cook speaks in New York on April 30. This week, he said some of Silicon Valley's most prominent companies have "built their businesses by lulling their customers into complacency about their personal information." Richard Drew/AP hide caption

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With the Periscope app, owned by Twitter, it's easy for smartphone users to stream their own video live. Chris Jackson/Getty Images hide caption

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An image from a video made by photographer Aaron Mischel which featured the song "Happy" by the band Secrets in Stereo. Aaron Mischel/YouTube hide caption

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The author, modeling her mother's watch. Laura Sydell/NPR hide caption

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Intel Corp. co-founder Gordon Moore holds up a silicon wafer at Intel headquarters in Santa Clara, Calif., in 2005. Moore's prediction 50 years ago, called Moore's Law, has been the basis for the digital revolution. Paul Sakuma/AP hide caption

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