Digg founder Kevin Rose typically cites "the need for diversity" when questioned or criticized about the promotion algorithm that controls what stories make it to Digg's front page. "One of the keys to getting a story promoted is diversity in Digging activity. When the algorithm gets the diversity it needs, it will promote a story from the Upcoming section to the home page. This way, the system knows a large variety of people will be into the story." Oh, really? A Digg submission linking to headline aggregator Fark.com received over 1,000 diggs but still hasn't been promoted to the front page. The problem? The submission is 11 days old. Why are old stories so penalized? If there is a significant surge in Diggs on a story, it should be promoted to the front page just like any other upcoming submission. So much for the vaunted "algorithm."