Thoughts on Iapetus

Highly eccentric orbit
Outermost moon of Saturn
Light/Dark halves
Density slightly greater than water
Equatorial "Wall"
Polygonal Limb

What does all this mean?

My imagination can go wild when I think of the possibilities. I grew up on Heinlein, Clarke, Asimov, Bradbury, Burroughs, etc. I can't help but think of what this could mean.

Sometimes the fear of the ordinary takes over though. What if there is no great mystery to solve? What if the Universe really is just a few boring gas particles? What if there really isn't anything going on "out there"?

But what if there is?