Up to this point, seasteading seems to be more about superficial design and "gee-whiz! futurism" than about actually building a seastead as an ongoing concern -- as a self-sustaining alternative to government monopoly. The Seasteading Institute has promoted a number of conferences and has achieved a good deal of media coverage. That is always helpful for raising interest in the general ideas, but when it comes to the nitty-gritty of making a life on the ocean, most of the ideas one finds on the site lack heft. In the end, a seastead will have to pay for itself.
It appears that aesthetics may be playing too great a role -- and economics too small a role -- in many of the themes and schemes thrown around in popular seasteading circles.
There is no need to reinvent the wheel in terms of basic marine structure. Actual commercial enterprises such as the oil & gas industry and marine mining concerns, have made significant engineering advances and continue to do so, in terms of habitable ocean-going vessels which are also working commercial platforms. It is possible that the movement could use the input of more no-nonsense marine architects and engineers, as well as that of more persons familiar with the ins and outs of making a living from the sea.
The early seasteads need to be tough, strong, and relatively inexpensive. There is no need to win a beauty contest. One relatively inexpensive building material which could be used to construct working seasteads is pre-stressed concrete:
Through innovation with precast and prestressed concrete, some latest trends are now focused toward the development and construction of floating ocean platforms used to extract minerals, energy, and other natural resources.If the trend toward more and more offshore drilling and mining enterprises continues, it is likely that a great deal of the preliminary testing of possible designs and materials will be done by industrial concerns.
Precast and prestressed concrete platforms have been constructed to support phosphate processing plants, floating liquefied propane gas (LPG) processing and storage facilities, and oil exploration platforms that are transported afloat and grounded for drilling.
For ocean platforms, the size and weight of prestressed and precast concrete construction will provide the greatest dynamic stability due to its large inertial advantage. Long-term durability of concrete construction in an ocean environment has been proven by actual service of existing prestressed precast concrete platforms over the last several decades. _civil-online
By taking advantage of the lessons already learned and earned by offshore industries, seasteaders who are serious about pulling their own weight can find starting opportunities and niches. Focusing on "pay as you go" approaches is not nearly as glamorous as a lot of the ideas being thrown around at some popular seasteading sites and forums, but it is an approach that is more likely to work in the long run.
From an earlier article at Al Fin Potpourri
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