If the capital costs of such a system are lower and they can convert the design into something floating on the sea on continental shelf with tethers mooring it

If the capital costs of such a system are lower and they can convert the design into something floating on the sea on continental shelf with tethers mooring it to the floor i see a lot of potential for water, land and electricity (competitive) stressed cities. A case in example is Chennai, India. I wonder if RO based desalination has any learning rate associated with it and whether a lot of CAPEX costs are related to some proprietary IP. I know that a lot of OPEX is energy costs and hopeful that solar will get even more cheaper with time and even more scale. However if the same can be done with scaling of RO technologies and reducing costs to say ~20 % of existing a great many opportunities will arise. Really hope it will be lower than 0.1 $ / m3 before 2030.