More bad ideas:::
-stationary battleships that double as barrier reefs
-floating cities that ship cargo as it's industry
-training fish to retrieve sunken debris
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@lucifargundam Hmm, most ships are stationary after navigating to a place where one would want a barrier reef. The process is also called sinking.
What scares me is combination with part three: the fish doing that with a battleship must be enourmous.
