well you made the 10 hour claim calculation :) 10 hours ain’t long. it takes about 3 weeks from Asia to Europe shortest route. 24/7. so a 10 hour journey limits that usage ;) I seem to remember from Bremer Hafen to Hamburg it easily can take 6-10 hours. due to waiting and traffic. so it will be short harbor routes for sure ;)
I work in the industry. as I see it this will be used along the major harbours along Chinese coast. if we see them elsewhere it could be along the east/west coast of the US or Mediterranean in Europe. but it is limited. and not global trade. more like regional distribution. also as a Dane. we have two electrical ferries connecting to other countries. this is super interesting as they are running often small routes and thereby reduces local air pollution a bit similar.
and water is wet!
love American units “a School bus”. go Metroxpress already.