IMHO, there is no technology bottleneck. If we can put men on the moon, install multi-billion-dollar offshore rigs/platforms/barges, then, using current knowledge, we can buld pretty much whatever. It doesn’t even require a profitable business, just one break-even family venture would put it into the realm that makes it feasible. The problem is building the first seastead/gulfstead.
The bottleneck is funding and places to build. For a massive floating barge, to put condos on, it can be done, especially considering the NKOSSA barge is at least as large as the TSI concept.
As for places to build, the options are to buy and put in an incubator site, where folks can come buld their own thing, or pay a King’s ransom, to have a corporation build it, regardless of size.
All the art contests in the world haven’t built the first thing. All the publishing hasn’t built anything. Once the consumer becomes aware of the initial cost, plus ongoing fees, the prospects are beyond the average person, for the condo-barges. Making a build-it-yourself, incubator site is the only way the average person is going to be able to afford the attempt. MOST of those that would be likely to do so, would prefer pre-engineered designs, so they buy a plans and instructions set, and go from there, just as was done with ferrocement yachts, in the '70s.
That leaves needing access to certified marine architects and engineers, at affordable costs. THAT, my friends, is the bottleneck.
Building a hull, even for a mega yacht is ~10% of the total COST, but getting plans engineered and certified is easily 2-3 times that. Once the design and plans are certified, THEN they become affordable as individual sets.
From a practical standpoint, the engineering has to include proper sewage management, energy generation, food production, storage, and more.
If I could ask one thing from a needed sponsorship program, it would be access to a certified marine architect and naval engineering firm. I would prefer someone that can develope a ferrocement plan, based on my design concepts, that will meet the insurability standards, such as Lloyd’s, as well as the pending international standards over sewage handling.
My own concepts handle these issues at homestead-scale/small-family-scale. Once built, I will have to have a permanent mooring site, which requires government approval, at least for my purposes. I have no intention of trying to anchor in mile-deep international waters, for my own reasons. IF such a mooring site is done to meet the scale of current offshore platforms, then there would be sufficient anchorage for multiple small, family-scale seasteads/gulfsteads, allowing growth and the development of communities, which is the path I intend to take.
Once I have a reasonable facility to live at, while I build, I will begin further development, testing and contacting the marine architects and naval engineers I need. I don’t expect it to be a cheap process, but the final product should be capable of handling anything short of a direct hit from a major hurricane. Once I get the majority of my hull done, I will have space available for others to begin the production their initial projects.