Well, I don't know about that. Some concepts are just abstract and don't have a distinct pictorial representation. For example, "save" is a pretty simple and easily understood concept but the best icon we have is at this point comically antiquated, and it offers zero clues to the uninitiated. But we haven't found anything that more fundamentally represents the concept.
Which I think is actually kind of ok, because again not everything has a simple obvious icon. Some things might be better served with just standardizing on an abstract and distinct shape. Newcomers may not know what a floppy disk is but they will learn the association anyway. And it just becomes one of those cool bits of lore that nerds like, double win!
The disk is the physical object (noun) though. While 'save' isn't tangible, what you are saving to (a disk somewhere) is, which makes it real and easy to understand. When floppy disks truly disappear the icon will have to change. 'Share' might be about people but there's 1000 ways to interact with people, so you need to actually describe better what you are sending to people (a link, permanent access, everything you own, or what?).
Which I think is actually kind of ok, because again not everything has a simple obvious icon. Some things might be better served with just standardizing on an abstract and distinct shape. Newcomers may not know what a floppy disk is but they will learn the association anyway. And it just becomes one of those cool bits of lore that nerds like, double win!