I love these bits that explain concepts that I just don't get and make them plain as day.
"Data has this really weird quality. In economic terms data has an increasing marginal utility. Anyone who took Econ 101 knows that most physical objects have a decreasing marginal utility. When it is raining my first umbrella keeps me dry, a second may be handy if the first blows out, but a third is unlikely to be used. This is true of shirts, steaks, houses, of almost anything you can think of except data." LINK
