"For the average editor, that analogy might seem abstruse. But what it means in practice is that if you run a website, you would be wise to learn more about exactly how interest in your stories cools off, if you want to display those stories in a way that will entice the largest number of people to read them. You digg?"<p>Isn't this exactly what the folks at digg have dug? And haven't the redditors made alternative, but related, decisions?<p>That's not to criticize the story, but can't a writer at the Economist get someone from any of the companies on the phone to discuss exactly these strategies? Seems like a weird place to end things.