What exactly is the difference that’s needed from current large cruise ships? Is it size per se? Independent production of food and fuel? Production of trade goods?
It’s physical size, permanence (lasts for 200+ years with extensions possible) and cost per unit area (cheap enough for middle class people), safety, no sea motion, pleasant land to live on, strong foundations for large buildings, robustness (not sensitive to one small mistake)
You don’t need to produce food, you don’t even need to produce physical goods. But you do need a population of 1 million people who are there permanently and call it home.
What exactly is the difference that’s needed from current large cruise ships? Is it size per se? Independent production of food and fuel? Production of trade goods?
It’s physical size, permanence (lasts for 200+ years with extensions possible) and cost per unit area (cheap enough for middle class people), safety, no sea motion, pleasant land to live on, strong foundations for large buildings, robustness (not sensitive to one small mistake)
You don’t need to produce food, you don’t even need to produce physical goods. But you do need a population of 1 million people who are there permanently and call it home.