I started a new game the other night: Immortal, Large map, Continents, random got me Egypt. I started on a strip of land sandwiched between the ocean and a long, long mountain range that cut me off almost completely from the rest of the continent. Kind of intriguing.
I scrunched in 6 cities and met England, the only other civ I could possibly meet before developing the naval techs. She and I are separated by such a narrow strip of land that neither of us can make any headway. There is literally a 2-hex doorway between us. We've fought 2 wars - she declared on me once, and I declared on her once - but I wasn't able to muscle through the door.
So I've been forced into a peaceful start, where my usual strategy of giving myself some space by knocking out my nearest neighbor early hasn't worked. Now London and Birmingham are big and well-defended, I'm starting to meet other civs, and I can no longer launch a war of conquest without warmonger penalties. I'm curious to see where this goes, whether failing to score an early win on the battlefield leaves me in a bad position.