>If human beings had much more accurate memories, copyright would be quite a bit more intrusive (and/or quite a bit less effective) because, following any exposure to some kinds of works, we could use our own memories to reproduce those entire works from scratch for our own use or pleasure without obtaining authorized copies from elsewhere.

I don't know the name, but I remember some sci-fi story about some academy where humans were trained from birth without exposure to music others had written and had to reinvent it on their own. Some would cheat and access the outside world's music, but they would always be caught by their later compositions all having obvious influence from conventional music.

<Insert obvious joke about how I'd remember the name if I had computer-like memory.>