There was a theoretical one I saw ages ago that was a giant cylinder rotating in space at close to the speed of light that had this limitation. I remember exactly zero details beyond physically what it was in the phrase “time cone”.
Seems like it’s probably the Tipler Cylinder
Honestly I’ve found there’s way more to do for fun that’s free in cities compared to when I lived in a small town. The libraries, museums, parks, etc. are all much larger, more exciting, and easier to access - I don’t even need to own a car to have fun anymore. There’s also more social groups for more niche interinterests. Back when I lived in a town, the options for free(ish) fun were: go to a house, go to a mountain, go to the beach, and all were places you had to drive, god forbid you want to take a bus or walk somewhere, and then the people you would hang out with at those places were just co-workers or people you met in school, because there was no other way to meet people.
No, that’s Cartagena, Cortana is a region of Spain