“Lawrence Golan had argued that taking works back out of the public domain would hinder creativity by making artists more cautious about remixing or otherwise using works, fearing their status could change in the future in a way that required payment to copyright holders. More broadly, academics have expressed concern that upholding the 1994 law would make it much more difficult to write books or assemble course readings without having to deal with a host of legal hurdles–or just prohibitively expensive fees–to avoid violating copyrights.”