I looked up some of his other stuff, and in a nutshell, he is trying to measure history. Since you can't measure history, he just assigned arbterity values to historical events then put it onto a graph, and boom you got some odd theory of how everything ends in 2012.

Looking at his other stuff, an obvious flaw becomes apparent. The scale of events become smaller and smaller with time. So a president leaving office is the equivalent of the fall of the roman empire(This is an example he gave). And fashion trends equal thousands of years of history. So more and more meaningless stuff grow more important in value, and reflect on larger spaces of history. One war equals thousands of wars. Until eventually you reach the point, where your blinking represents all of history. Then you cross the exact point where it ends, and the most meaningless things humanly possible happens and the chart ends.

I am not sure how the chart ending equals a large crazy event, when all his examples before that, smaller and smaller events equal larger and larger periods of time. Eventually you should end up with meaningless events, representing everything that ever was.