Here's a primer on McKenna's novelty theory. In essence, this generator tracks novelty as it happens throughout history, and attempts to forecast incoming novelty levels.
While McKenna's original conclusions suffered from significant assumptions coming from his attempt to match the Timewave to the Mayan calendar, impacting its accuracy, many found the math behind it fascinating, which led to the work of Meyer and subsequently Newell-Lockett above.
In essence, it's a future historical event forecaster. I make no claims as to accuracy, but I do find it a fascinating project nonetheless.