From the Freakonomics interview with Dilbert Creator Scott Adams

Q: How come the blogs in my Google Reader intertwine so much? I subscribed to The Dilbert Blog following a recommendation from Tom Kyte,
and I know about Freakonomics from a neighbor. Suddenly, these blogs
are not only heavily quoting each other, but Scott Adams gets to guest
blog on Freakonomics, and Kyte does the same over at Worse Than Failure.

A: It means your alleged life is nothing but a program running in a computer somewhere, and the author reused code