If Leonardo da Vinci Says It's the End of the World, Then It's Fucking the End of the World, OK?

I had a three day visit from a strange but cool medieval guest, one Leonardo da Vinci (time traveler, who knew?).

He told me 2011 is the final year of humanity, and thus the end of the world in a practical sense.

He didn't say if it was just humanity or the entire physical planet, but I think that is really neither here nor there, don't you?