Smooth... vs. Jagged

I was looking at a picture today of a cloudy mountain peak, with a jagged and a crisp, scissored brow. I clicked a block in my mind over another block, which it had been balancing on, and it fell into place. Previously, I had assumed, naievely, which I spelled correctly on my first try, that the majority of the world was a tasty plainish flat area, where houses and schools could easily be built. Anyways, it totally isn't. Imagine this; if the world was shrunk to the size of an 8 Ball itc would be smoother. Oh, wait, that kind of defeats what I was talking about. Whatever, the point is, the Earth is actually really rough and hard to traverse. Bam. Well, I'm not a believer in wasted words, so here they are, regardless of intellectual cohesiveness. And a quote;

"Don't shit where you eat."

I hope that helps someone.