I'm not trolling, this isn't an attempt to aggravate or provoke you.
I'm just trying to make you read.
Here are some random excerpts you might be interested in.
How can you make money on a seastead?
Seastead residents can make money in a variety of ways. Just as in any land-based city, there will be demand for internal services—plumbers and hairdressers, schoolteachers and doctors. Other seasteaders will produce goods tailored to external markets. Here are just three examples:
Resorts—Many people go to Club Med and cruise ships with no real intention of ever leaving the facilities. A luxury seastead resort could be tailored to meet the needs of these people. Can a floating luxury resort be profitable? The answer has been yes for decades, as we can see by looking at the cruise ship industry. These ships produce nothing, import all their food, water, and fuel, and still turn a profit. About 10 million people a year take a cruise, providing about $17B in revenue. A floating resort could be a profitable business model. In addition, the number of people willing to spend a few weeks each year on a seastead is far greater than the number willing to drop everything and devote their lives to it. Still, these seasonal opportunities may open doors to more permanent industries and occupations.
Aquaculture—Farming fish in giant nets near a seastead holds considerable promise. Currently, aquaculture is more feasible nearer to shore. But with the advent of seastead platforms and associated technologies, many fish can be raised in the open ocean – which may more closely resemble their natural habitats.
Medical tourism—Government bureaucracy is a major barrier to medical and biotechnological advancement. The FDA has historically been slow to approve new medical treatments, and promising improvements in areas such as stem-cell research have been retarded by government policy. Seasteads would provide an excellent place for cutting-edge medical research and treatment.
As you can see, there are quite a variety of business possibilities for seasteads. These are just a few of the potential industries that are likely to form. As seasteads flourish, the number of industries and job opportunities will increase.
In what ways will seasteads be autonomous? Will seasteads provide their own food/power?
Seasteads will be autonomous in that they will set their own local policies. We don't think achieving material self-sufficiency is desirable or necessary. Diesel fuel costs are reasonable to operate generators for electrical power. Importing meat will cost less than raising cattle on a seastead. Rather than seek material self-sufficiency by producing everything themselves, we expect seasteads to specialize in industries where they have a competitive advantage (such as fish farming) and trade for goods that can be produced more efficiently elsewhere.
What about pirates?
Although piracy receives a lot of press, it is a relatively rare phenomenon. Pirates typically lurk offshore of unstable regions in the world, such as the southern coast of Africa. A seastead can avoid most piracy risk by not locating near one of these regions. Also, relative to other targets such as container ships, seasteads represent a poor risk/reward ratio to would-be pirates. Container ships carry mostly cargo and small crews. Seasteads carry relatively little valuable cargo and large (likely armed) populations. Seastead residents are likely to fight much harder than container ship crews, as they are defending their own homes and businesses, not a corporation's property. Therefore, it will be wise for pirates to avoid seasteads in favor of easier prey.
Much piracy is small-scale theft—for example, of the 335 attacks reported in 2001, only 73 involved guns. Sixteen ships were hijacked, and 21 people killed (all but one in Asian waters). A sea-city will be much too large for this kind of criminal. Even an individual seastead—a concrete tower—will be a much tougher target than a luxury yacht. This type of piracy is mainly notable for being vivid and exciting—it is rare enough that oceans are still full of private pleasure craft. Still, we recommend that small seasteads avoid the pirate hotspots (Southeast Asia and Somalia).
There are larger organized criminal groups involved in piracy that capture entire ships and their goods (often tens of millions of dollars worth). They use forged documents to obtain a new load of cargo from legitimate shippers, and then steal it too. It is worth noting that these groups specifically target container ships, not cruise ships, which is not at all surprising. After all, a container ship has only a few crew and vast amounts of cargo, nicely boxed and ready to be fenced. A cruise ship has far less saleable stuff, and far more people to deal with. In fact, we wouldn’t be surprised if there was 100 times the "crew per $ of movable cargo" for a cruise ship vs. a container ship, so it’s no wonder that thieves focus on the latter! The cost/benefit analysis just doesn’t work out for this kind of crime.