This is rooted in the idea that a person should need permission to work. The reason we do this is because our capitalist society is structured around competitio

This is rooted in the idea that a person should need permission to work. The reason we do this is because our capitalist society is structured around competition instead of collaboration. Because all work must be framed as a competition, the only way collaboration is allowed is by explicitly joining a team. This rule is made explicit with copyright: derivative work is, by default, illegal. The only way that derivative work is allowed to be made is after making a contract with the rightsholder. This system can only be enforced with incompatibility. You can't actually stop someone from making derivative work unless your help is actually required. The most familiar instance of this requirement is software: it's simply not pragmatic for someone to extend your code, when they only have access to a compiled binary. Software work can only be extended from a shared context: what you write must be compatible with what is written. That's generally unfeasible when what is written is a compile-time optimized binary executable. Incompatibility is not a perfect barrier. It's possible to decompile software. It's possible to edit text, images, video, audio, etc. Copyright depends on incompatibility, and LLMs are simply the newest, most compelling way to call that bluff.