Copyright isn't about distribution, it's about creation. In reality the chances of getting in trouble is basically zero if you don't distribute it - who would know? But technically any creation, even in private, is violating copyright. Doesn't matter if you make money or put it on the internet.
There is fair use, but fair is an affirmative defense to infringing copyright. By claiming fair use you are simultaneously admitting infringement. The idea that you have to defend your own private expression of ideas based on other ideas is still wrong in my view.
> Copyright isn't about distribution, it's about creation
This is exactly wrong. You can copy all of Harry Potter into your journal as many times as you want legally (creating copies) so long as you do not distribute it.
"copyright law assigns a set of exclusive rights to authors: to make and sell copies of their works, to create derivative works, and to perform or display their works publicly"
"The owner of a copyright has the exclusive right to do and authorize others to do the following: To reproduce the work in copies or phonorecords;To prepare derivative works based upon the work;"
"Commonly, this involves someone creating or distributing"
"U.S. copyright law provides copyright owners with the following exclusive rights: Reproduce the work in copies or phonorecords. Prepare derivative works based upon the work."
"Copyright infringement occurs when a work is reproduced, distributed, displayed, performed or altered without the creator’s permission."
There are endless legitimate sources for this. Copyright protects many things, not just distribution. It very clearly disallows the creation and production of copyrighted works.
There is fair use, but fair is an affirmative defense to infringing copyright. By claiming fair use you are simultaneously admitting infringement. The idea that you have to defend your own private expression of ideas based on other ideas is still wrong in my view.