This is neat, have lots of questions about how sturdy the connections are between TEUs. Also How difficult is it for the captains and crew to pilot a ship like

This is neat, have lots of questions about how sturdy the connections are between TEUs. Also How difficult is it for the captains and crew to pilot a ship like this? How much cargo capacity has to be forsaken for these to be installed? 20 TEUs? This feels like something that the govt should be subsidizing through grants.