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So I want to write a fictional book based on Borges' Library of Babel idea. The only thing I would preserve is the setting. However, I am unsure of the legality of it. Is the setting copyrightable...
#3: Attribution notice added
Source: https://writers.stackexchange.com/q/40800 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
So I want to write a fictional book based on [Borges' _Library of Babel_ idea](https://en.wikipedia.org/wiki/The_Library_of_Babel). The only thing I would preserve is the setting. However, I am unsure of the legality of it. Is the setting copyrightable? How does that work? I don't think you can copyright ideas, so if I called it something else would it be fine? Note, I'm not trying to legally worm my way into stealing it, I plan to give full attribution as the inspiration; but I just want to know if it is legal or what the best course of action is. This is in the United States.