What do people think of underwater pastoral and underwater pasture?

In the near future, people will reap more wealth in undersea pastoral areas and undersea pastures than land farms and pastures, because the output of marine farming is 100 times higher than that of land farming in the same area. Instead of cucumbers, tomatoes, pumpkins and other vegetables, a large number of seaweeds and seaweeds are fed to cattle, pigs and sheep on land-there are a large number of protein in seaweeds and seaweeds, so that cattle and sheep will grow better. At harvest time, a large number of seaweed and seaweed will be cut by the underwater combine harvester and then hoisted to the ship with steel cables.