duchess of malfi wrote:Exactly.
And perhaps the Giants used Earthpower when they carved out Revelstone.
And as far as that goes, things that are a bit "out there" don't bother me when it comes to fantasy novels. The fact that humans probably couldn't live on a world with seasons as far out of whack as they are in Westeros doesn't matter a bit to me when George R. R. Martin can create such wonderful characters as the ones who live there.
If I particularly cared about the specifics of the use of granite in weight bearing walls, I would be reading an engineering or architecture textbook, rather than a fantasy novel.

What matters about Revelstone is the people who made it, and the people who live in it, not the fact that it couldn't exist here.

That's quite true. But when people start picking nits about these details, as they do in this thread, someone has to step in and say: Look, SRD is not a structural engineer. He has said that he doesn't think in spatial terms when writing stories. There is no rationale for you to find. You're analysing something that isn't even there. Revelstone, as a physical entity, is principally a backdrop for the action, and as any stage manager knows, backdrops aren't architecture.
People have got into the bad habit of niggling over background minutiae, I think, chiefly because Tolkien set the bar so high in the Appendices to LOTR. But by the time those books were published, he had spent
40 years working on Middle-earth in obsessive detail. It was an intellectual game that he loved to play. Thus, for the most part, the details were there, and he had done his best to consider every aspect of his invented world. Most fantasy writers just don't. SRD doesn't; he doesn't consider it important. For him, the focus is always on the characters and their actions. Vivid though the Land appears to the mind's eye, it really is just like a stage set made of lath and plaster and papier-mâché.