Who would be so stupid as to hop aboard a floating petri dish in the middle of a winter second wave of COVID-19?
I know, I know. “Plenty of people.”
Maybe there’s a market solution to this problem, then. Let the ships sail, doing their level best to keep passengers safe from infection, and if it doesn’t work out then public demand for cruises will adjust accordingly. We could even require that all passengers submit to two weeks of centralized quarantine upon coming ashore after the cruise ends, just to be on the safe side.