What does it mean "those who do not remember the past condemned to repeat it"

1. what was the premise behind the recording industry association of america’s lawsuit against napster? 2. based on your knowledge of how napster worked, if you downloaded a copy of a song from a friend’s hard drive using napster, would you be infringing on the musician’s or record company’s copyright? 3. describe the scope of the digital millennium copyright act and what or whom it protects. 4. what was the link between the digital millennium copyright act and the napster legal proceedings? 5. what are the legal implications of napster’s online music-sharing service?