Every two days we create as much information as we did from the dawn of civilisation until 2003

"Today at the Techonomy conference in Lake Tahoe, CA, the first panel featured Google CEO Eric Schmidt. As moderator David Kirkpatrick was introducing him, he rattled off a massive stat.
Every two days now we create as much information as we did from the dawn of civilization up until  2003, according to Schmidt. That’s something like five exabytes of data, he says.
Let me repeat that: we create as much information in two days now as we did from the dawn of man through 2003."
Source: Techcrunch, 4th August 2010