Differently to what was traditionally discussed in the TSI sphere, where the idea is that the farer out in the high seas you are, the more freedom you can have. This discussion space postulated that early seasteads will grow near the shore in any case and that the freedom you can have is not so much a function of shore distance but a function of local waterfront ruling.
There are places in the caribbean where you enjoy a 9,5 interference freedom 15 m from the beach.
In fact there is no such thing like a uniform interference level in one country – one beach might be overregulated to the bones driven by a picky city counsel, while another just a few miles away outside thier jurisdiction might be de facto unregulated.
The above example is a good example what kind of environment we need to AVOID when floating out something. It is also a good example how things like square shape or ship shape can make a world of difference in the ruling set.
No doubth that any waterfront in jurisdiction of seattle is an ambient 1 on the 1-10 third party interference scale.