Yeah these islands are awesome. They apparently allowed the inhabitants to avoid being invaded because they could keep moving them.
What’s even more amazing is they’re 100% made of plants from the lake, held up by the gasses in the plants. No steel, no plastic, no concrete, nothing manufactured.
The only cost it seems was time, and effort.
It makes me think the most effective way to build a seastead is not primarily out of concrete, plastic, glass, or anything else man made, but rather out of mostly just plants.
So my goal is to use (mostly) recycled materials to create a basic framework/starting point, and then cover it almost entirely with plants. It’ll be the plants doing most of the work (holding the stead together, and providing most of the boyancy) once established, and the framework will get dwarfed by the plants.
Using this approach we don’t need to spend a fortune on a seastead in theory. Just enough to build the basic starting point for the plants, and then the plants naturally do the rest (with a bit of help from us to maintain them).
I’ll be starting (I think) in an estuary, then when the plants are established after a few years I’ll try using a kite to drag the whole thing into the ocean.
The key IMO to surviving the waves and weather in the ocean is….like the uros islands, plants, and lots of them.
The plants can keep regrowing and repairing any damage. If we rely on manufactured materials we’ll need to manually repair any damage, which could end up costing too much.
It’s a grass that grows in salt marshes from Newfoundland down to Texas, and is planted extensively for erosion control because it absorbs wave energy. It drowns on its own in deep water, but if you paired it with something for it to latch on to, it might work.