THIS autumn, Susan Wojcicki, the chief executive of YouTube, appeared on a panel at Vanity Fair's inaugural technology conference in San Francisco. Sitting on the same stage at the Yerba Buena Center for the Arts where Steve Jobs once introduced the iPad to the world, she discussed the future of the media with Richard Plepler, the chief executive of HBO.
At one point, the moderator asked Ms Wojcicki if she thought cable television would still be around in 10 years. She paused for a moment before answering, with a bit of a sly smile, "Maybe." The crowd laughed, even though just about everyone knew she was only half-joking.
If cable TV is gone in a decade, Ms Wojcicki and the global digital...