It is funny how people come on here and tell us all that there are waves in the ocean. That is the first critique I see on the Internet under any Seastead article as if none of us even consider waves when thinking of seasteads. It has become the “what about the roads?!?” question when someone talks about getting rid of taxes.
The reason many designs are currently more “barge” like is that the initial seastead will likely be in a protected harbor. Will a 100 foot wave destroy most seastead designs? Yes. Will a 100 foot wave destroy most yachts? Yes. But they still build yachts. A 100 foot wave will destroy most homes on the coast and yet people build their homes on the coast.
You do not see vast open coastlines with no homes because builders think “why would I do that? A wave could wipe out the house”. Sure, some builders build concrete domes on the coast that survive hurricanes, but most do not.
How many houses in Oklahoma are tornado-proof even though tornadoes tear through there at the highest rate of any state? How many houses near volcanoes are built to withstand a lava flow? How many houses near flood zones are built to withstand a flood?
You build within a certain amount of parameters that will account for a high percentage of the time. But building for every possible scenario you start to lose return on investment quickly.