Tell me what you know about North Korea

I am right next to North Korea. This place is equivalent to the 1980s in China. People in the capital live well, but people outside are miserable. People outside North Korea are not allowed to wander around. Food is distributed by the state, and education is free and medical care is free. The economy is tourism, labor smuggling, etc. There is no openness, that is, the capital is okay, and there are ports and other seafood trade and minerals