Comment by citrin_ru

> Sea transport isn't going to get any faster - probably ever.

It seems to me that modern freight ships are optimized for capacity/cost ratio and not for speed - hull shape is very close to a box with a short bow/stern attached. I'm not an expert but it looks like if you make the hull longer and a bow/stern narrow you can go faster. Military ships are optimized for speed and their hull shape is not a box.