4. Vegetable Lamb
I’m not sure if this one can be considered a “theory”, but it’s pretty bonkers, so, whatever! Imagine you’re in medieval Europe, and you come across a plant that looks like this (see the image, dummy). What are your further actions?
A) Run.
B) Shriek like a banshee and run.
C) Call it a vegetable lamb, make a sketch of it, and leave it be.
Yes, of course it’s option C. You’ll look like a fool, but hey, you know what you saw!

5. Cosmic Twins
Assuming our universe is infinite, it’s only logical to presume that somewhere out there is/was/will be a creature with a set of genes identical to yours or mine. It’s called the theory of Cosmic Twins.


6. String Theory
You may’ve heard this one before: our universe is made of tiny, one-dimensional strings! Or maybe not, it IS a theory after all.