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xkcd #3220: Rotational Gravity
(imgs.xkcd.com)
A community for a webcomic of romance, sarcasm, math, and language.
Joke's on you if I'm too dense for you to pull the rug out from under me.
But seriously, saying "cruise line" did not do enough to contradict the SF frame for me. Should have been something like "passenger ferry boat company", out something.
You gave it a try. You failed.
Move on.