Why is R'yleh, the fictional underwater city where Cthulhu lies dead-dreaming, appear so insanely unreal, literally? One physicist thinks he knows the answer.

Here's a brief animated summary of the Cthulhu Mythos for those of you who from some bizarre reason haven't read it yet.

Today is the day to celebrate your favorite cosmic horror, which lays dead-dreaming on the bottom of the ocean.