Aquaculture is really catching on. I think that it can give seasteading a really big push into reality. The world stopping hunting, and starting ranching. The world stopped gathering, and started farming. The world will stop fishing, and will start aquaculturing. It’s a natural transition. Seasteads will lead the way.
I think the big propellers are a very important part of making this work. The push you get from a propeller is proportional to the change in momentum the propeller gives some water which is:
mass * velocity
for the mass of water pushed out the back at some velocity. The energy put into that water by the propeller is:
1/2 mass * velocity^2
So if you are going slow you really want a big propeller that pushes slowly on a lot of water. Using a small fast propeller on a big slow seastead would take far more energy for the same push.
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