One of my friends told me that he thought that Notch had hidden aliens in the coding, and to plant a giant field of crops and just wait fro the crop squares.

Just to prove him wrong, I planted a big field of wheat and waited for nothing to happen.

But one day, I woke up (in minecraft) and saw that there were some holes in my crops. The first logical thing I thought of was that a pig had gotten into my field, but that's not possible, as the entire thing is fenced in and this was a flat grass map.

I flew up, and lo and behold, crop squares!

I guess there really are aliens in minecraft.