Those who live in housing projects will not really be removed from their usual surroundings. The type of cruise ship that is Harmony of the Seas are apartment blocks. On land, the tendency is to their burst. At sea, they are considered as progress. 6,360 passengers are threatened by seasickness, gastroenteritis, and the crumbling of old fashioned decorations. They are serviced by 2,400 crew members of 70 nationalities living in tight quarters in the lower decks, similarly to the time of the Titanic.
The cruise industry pollutes, obstructs and takes risks. In case of shipwreck, fire or attack, the means of assistance and rescue are ridiculously undersized. Each launch of Gigantic should be coupled with the commissioning of tugboats and rescue helicopters chartered by the owners. Unfortunately, when a problem occurs, it will be the ships in the area and the coastal states to sort it out…
See « From the Titanic to the Costa Concordia » 
* Official name : Harmony of the Seas