Facebook sees its future built on artificial intelligence

SAN FRANCISCO --  According to one Facebook executive, if you think you're drowning in a flood of information now, you ain't seen nothin' yet.
In four years, there are expected to be about 40 zettabytes of information in the world, according to Mike Beltzner, a Facebook product manager.
Think of it this way: A zettabyte is more than 1 trillion gigabytes. If a gigabyte can store 960 minutes of music, then a zettabyte can store 2 billion years of music.
"If you take a look at the sweep of da