Not sure if this was posted, but here is a good article about copyright basics:
https://copyrightalliance.org/education ... 6ytA5wotng

I only re-use material with a 'Creative Commons' license. I think this license is more advanced than 'copyright' for a number of reasons. I respect an authors copyright on a novel, publication etc, but imagine what would happen if the language it was written in was copyright?
Imagine if mathematics was copyrighted by it's creators?

There are a lot of assumptions built-in to any advanced culture, and I suspect most copyright is just 'monetizing' something made out of other people's intellectual property. EG. How much does rock music owe Nikola Tesla creator of alternating current generation and distribution? (I don't expect anyone to answer that question)

I agree. I also re use material with a creative commons license as well. I agree with everything you said. I just thought the article was interesting and it could be useful.

"Copyright" is not a licence. Creative Commons doesn't replace Copyright, it complements it. As stated in the first paragraph of the Wikipedia page on CC, "A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".

If you use a CC work, in most cases you have to put an equivalent CC license on your derivative work (something which is rarely done around here...).