The only thing I would (totally naively and magically) wish for is some kind of really well organized and curated time capsule mainly for movies and music preservation.

I don’t want all the music and movies for myself, I wouldn’t be able to watch/hear it all but I wish for anyone from any time in the future — to have a simple/legal option to just dig anything out, public domain or whatever will work best.

People have created some amazing gems.