The question of self sufficiency, supply, deal with oceanic insulation,
Guys you are working the topic of seasteading under a “basic perception error” this error consists in looking at a seastead from a “boater perspective” on a boat the question of where comes supply from and fragility of supply lines, and therefore the need for autosufficiency is always an important topic. What you should do is looking at seasteads from a “port perspective” a port is connected like no place else to the most robust supply lines of the planet the oceanic trade streams of international container transport. In a port you get anything quick and cheap always. So “fragility of supply” or “no availability of goods” is not just a “non topic” it is just not realistic to postulate in a possible “shortage of anything” in a port. The other basic perception error is the idea that a floating city similar to a land city is supplied by the “surrounding fields”. This concept was true 50 years ago. It is no longer true today. Cities of any kind (land or waterbased) are supplied by containers that come in over oceanic trade routes in container ships and carter to your local supermarket. A seastead will just be no different in its basic supply structure from a land city – it is based on container trade and it will not be “less connected” to container ship trade than any land based city you live in today, it will be “much more” robustly connected to container trade than a land city. It will not only have a seaport – it will BE a seaport logistics hub.