Some people was thinking that the world will for sure, without any doubt, absolutely and definitely ends on 21/12/2012.
They have plenty of "proofs" and "signs" to confirm this thinking.
21 December was 10 days ago. Now, take a look outside. How many ruins of the world as we know it, how many Riders of Apocalypse rushing through the falling sky and how many shattered cities and villages engulfed with flames and dying in the great void you see?
The same is with Minecraft.