[megjnlno] Copyright causes history not to be recorded

Artists have incentive not to record what influenced or inspired their artistic works because of fear of copyright lawsuits from those they cite.  But such documentation would be useful for historians.

This documentation might be significant beyond just curiosities of history: it might show how society is knitted together, which would be powerfully useful.

Inspired by Marvin Gaye Estate versus Blurred Lines.