Why is this floppy disk joke still haunting the internet?

There’s a joke that circulates online every few years. It’s a picture of a floppy disk, accompanied by the claim that a kid thought it was a real-life version of the “save” icon. Every time it pops up, people laugh, hit “like,” and marvel both at their own age and the cluelessness of kids today.
Over the last week, this gag has been making the rounds on Twitter yet again, thanks to a user under the name Bill Gross. His tweet went viral, with more than 174K ret