Maybe this is something that Elon Musk might get involved in at some point? He has created a great system for Tesla cars with constant improvements being rolled out. Whether we like it or not autonomous travel is going to be a big part of the future. I think the idea of autonomous shipping is great - using radar and satellite navigation the autonomous AI would be able to adjust the course, before, during and after bouts of bad weather. If large crews were not required for these ships this might have a long term knock on effect to the cost of goods and services - lower long term costs would surely lead to lower end costs to consumers. Now that would get consumers interested - saving money!