What can not be copyrighted

There are several things that cannot be copyrighted, including:

1. Ideas and concepts: Copyright law only protects the expression of ideas, not the ideas themselves.
2. Facts and information: Copyright does not protect raw data, facts, or information.
3. Works in the public domain: Copyright does not apply to works that have entered the public domain, either because their copyright has expired or they were never eligible for copyright protection.
4. Titles, names, and slogans: Short phrases, titles of books, movies, or songs, and slogans are generally not eligible for copyright protection.
5. Functional elements: Copyright does not protect functional elements of a work, such as the mechanics of a machine or the layout of a website.
6. Government works: Works created by the U.S. government are typically not eligible for copyright protection.
7. Ideas used in fashion: Fashion designs themselves cannot be copyrighted, although certain distinctive elements of apparel may be protected by other means, such as through trademarks or design patents.
It's important to note that copyright laws may vary across different jurisdictions, so this list may not be exhaustive for every country.