Old Metaphors stay long

I recently read in a release note (yes, I actually read them) that the floppy disc as a save icon has been replaced with something different. Then I went to read about what others think about the floppy save icon in new days and found a thread about old metaphors in language which I want to extend (open to contributions):

English:

• Floppy Disc Save Icon
• CC (Carbon Copy) in an email
• Tin Foil (uses aluminum instead of tin nowadays)
• Glove Box (never used for gloves)
• Firewall (protection wall to stop the fire — used as internet traffic protection)
• Contacts book as App icon on mobile phone
• hourglass icon for timekeeping
• power button (comes from binary 1 and 0)
• heart shape (old incorrect belief of the shape)

German:

• Bleistift (German word for pencil, literally “lead-pen”, but does not contain lead for a long time, as graphite is used)
• Handschuhfach (same as glove box)

The point I want to make here is that it does not matter if the analogy is outdated, as long as everybody understands the icon or word. Using a newer word/icon would not have any benefit and the outdated word origin does often not exist as most (younger) people just learned the word without getting the meaning. Therefore I think that using floppy disc icons as a save icon is a quite good choice as the icon might not be recognized as a floppy disc by everyone, but its “saving” purpose is known to everyone. 💾🖫 (yes there are Unicode symbols for it)