First Stephen Hawking and Elon Musk expressed concern about artificial intelligence. Now Bill Gates joins the chorus.

For me, the turning point in watching HBO's Silicon Valley can be traced back to the Burger King subplot in the third episode.

Of all the reasons to flee a startup, death rarely ranks—but photo editor Corey Pein ditched Demotix after its acquisition by Corbis. "I thought their plans were dangerous," he explains. The Gates-owned copyright vault is under the gun again.