Attached Link: Copyright Infringement and Remedies

"NO ONE will be able to make art that someone else can't challenge as being a copy, almost copy, infringment or such?" It has to be proven that there was a willful attempt at copying, (such as access to the original), pure happenstance does not justify infringement. Also, after the period of copyright protection has expired, and material enters public domain, then it is perfectly legal to use this public domain material in whatever manner one sees fit.