....You can dream on. The laws of physics and economics are still going to be there when you wake up.
the pulleys are not just a source of friction, but pointless. If you have not worked out why then I don't think you are going to get much further with this...
I thought we had got to the bottom of the 'laws of physics' - are you still questioning my claims?
We don't have the necessary information to answer the question of economics but basing this on the value of existing vessels is flawed. These vessels are designed with a particular function in mind. The pontoon has a very different set of constraints and this opens up a wide array of possibilities to value engineer a far cheaper solution.
Once the design has been developed it will be possible to assign some realistic costs. To draw conclusions at this stage is conjecture or at best an educated guess. I'm not saying that guess work doesn't have its place but when refining the accuracy of the costs it is always a good idea to acknowledge the deficiencies of the estimate. If once a developed design has been costed it does not provide a healthy RoI then I would simply leave it at that, either way I will have learned a lot from the journey. My research has so far lead to several interesting fields of design and research that I wouldn't have reached in my usual walk of life, i.e., artificial coral reef, submarine / ship, bridge, tunnelling, anchorages, tidal systems, wave energy / prediction, ocean currents, hydropower, ocean floor topography.
Inventors need wide horizons, it is only from a unique perspective that original ideas are born.