I had never heard of these either. Very elegant.,(reply>), Common sense... nobody ever fished in a river?,(reply>), What makes it so practical and elegant is that is wasn’t designed by an engineer 😂,(reply>), Smart idea! Very cool.,(reply>), so i quess an explanation video incoming :D,(reply>), ​@matthew anderson I get that you'd effectively be moving around said point in a circle, but why 3.14 _percent_? Where does pi/100 come into this?<br>-<br>That being said, overhead has several advantages:<br>1. Easy repairs, no need to dive if something gets tangled or seperates, allows for year round simple (cheap) maintenance<br>2. Visibility. Boats sit above, and below the surface of the water. If for whatever reason, the cable isn't far enough down, be it even coincidence between an abnormally dry season and an overburdened vessel, it will one day catch or get caught in a propeller.<br>3. Reach. The deeper you require the cable to be, the less river it can span. Place it above, and it ought to be able to span the entire thing.<br>-<br>Not to say your idea doesn't have any merit, just pointing out a few issues that'd need to be solved before it could be implemented.