Regardless of dates being set for Elenin/Nibiru's arrival,there seems to be a cycle to this planet which occurs every 3500-3600 years. A cycle of destruction then re-creation.

Our little blue planet is billions of years old. It is ego-centric and a bit deluded to believe that WE(our current time)are the single greatest creation of this planet though out ALL of that history and time. We also all know that human beings have a tendency to spread quickly. Over billions of years or even the recent millions, our record of history on this planet does not go back THAT far. If human being have been around for at least 30,000 years with the same level of intellect and cunning we today possess, then why is it hard to believe we haven't already done this before?

If there was this cycle, a cycle that re-births Earth, it would have to keep re-occurring to keep population on this planet stabilized. Each cycle bring human kind to the next evolutionary level due to the benevolent sources returning as well.

From Homo Erectus--->man--->civilized man--->modern man--->?