Hm, a good subject. I've discovered a few new WTFs I didn't know about previously

The most implausible conspiracy theories to me are:
Hollow Earth.
Hollow Moon.
We didn't go to the Moon.
We have sooper seekrit bases on Mars.
Reptilian overlords controlling the elite.
Crop circles.
Pole shifts, in a swift manner.
Global Warming. EDIT to clarify: Global Warming caused directly by humans.
Lack of adequate land to feed 7 billion (Agriculture, we're doin it rong.)
Nibiru.
HAARP did it.
Anything that comes out of David Icke's mouth.
edit on 1/22/2012 by Nyiah because: Clarification.