https://en.wikipedia.org/wiki/Container_ship#Size_categories
https://www.asianausa.com/how-much-bigger-can-container-ships-get/
https://en.wikipedia.org/wiki/List_of_largest_container_ships
https://www.universalcargo.com/how-much-cargo-can-the-largest-shipping-container-ship-really-hold/
https://www.sjonescontainers.co.uk/containerpedia/how-many-shipping-containers-fit-on-a-cargo-ship/
https://www.costamare.com/industry_containerisation
https://www.ttnews.com/articles/ships-carrying-50000-containers-are-horizon-report-says