Land sickness. I owned / lived on a 41 foot sailboat for a decade. One of my semi-secret amusements was taking people to a tavern and buying a pitcher of beer after we'd been out all day. Idly drinking beers and having a pleasant conversation, and then watching them try to stand up to go use the restroom.

I know dozens who have come back completely healthy

that's what "anecdata" means

And you can reasonably apply the same grace to the person you're replying to...

"dozens"?? is that one dozen? Two? More?

how do you know all these patients? Or you just made them up?

Why are you being so skeptical? I know dozens of people that have gone cruising and I don't exactly belong to the stereotypical cruising crowd.

Assuming and a accusing a commenter is lying directly breaks HN guidelines.

I think you've got it 100% backwards, so don't be quoting Scripture at me like it means anything.

I know three people who've come home sick. He's the one being skeptical and quoting a well-known meme:

https://tenor.com/search/there-are-dozens-of-us-gifs

I was not referencing Arrested Development. Dozens is a term that was used to describe groups of people well before AD and the context here doesn't fit the meme at all.

I am not skeptical at all that you know three people who got sick on a cruise, but out of the 30+ million people who cruise in a year it's completely meaningless. A CDC study showed that only about 0.18% of cruisers get a stomach bug

I could easily come up with a list of 24+ people who have gone on a cruise and not gotten sick. Why are my dozens less valid than your 3? You can post your anecdata but don't get mad when someone counters it with their own.

Isn't that just vertigo?

But it's got its own name, and in French! Much better.