GEB is a great experience. It's not a deeply technical book, though it is both deep and technical. It's more specifically an adventure of thought. I hear there

GEB is a great experience. It's not a deeply technical book, though it is both deep and technical. It's more specifically an adventure of thought. I hear there are hidden messages in the book itself. I'm not motivated to track them down and solve them, but this is certainly an indication of the kind of tone Hofstadter was after: playful.