Recently a friend asked:
“Imagine a phone…. Now tell me why does a phone icon still look like a landline headset?”
Icons as visual abstractions that refer to a specific concept, come from an old paradigm, that of the mechanical (mail envelope) and electronic (landline phone set) era, where object’s looks and shapes came from their use and function.
Now we’re in the digital paradigm, where objects are impervious to function and don’t need a defined shape or, worse, as pure digital, they don’t even have a shape anymore. So most give images that are more vague and less recognisable that those of their mechanical counterparts.
So symbology has to take from the physical recognisable world, and thus from old shapes derived from old paradigms.
If you think of it, a phone is really no longer a “phone”. “phone” is one of its functions, but my iPhone is more my personal computer (I work and play through it) than my phone (I hate talking on the “phone”).