There's no way there's a world where everyone who needs to be in Europe next week from, say, New England, heads down to Boston to queue up for a utilitarian pas

There's no way there's a world where everyone who needs to be in Europe next week from, say, New England, heads down to Boston to queue up for a utilitarian passenger ship that takes a week to cross the open ocean. How many people would you need to even justify the cost and environmental impact of moving such a ship? 300? 3,000? Cargo ships have thousands of containers on them (massive scale) and they move relatively slowly. This is not a reasonable comparison. You can't just pluck weight per-mile cost out of the air and apply it to passenger travel.