Ah, the classic 5 1/4" floppy. I still use these with my Apple 2e.

Doesn't look so far away to me…
These were already 'mini' disks, as 8'' floppies have been used before. They were really 'mini' by their capacity: 360 Kb, that is, one third to one tenth of the size of a single compressed JPEG photo we upload daily to Ipernity.
I think I still have the same three MSDos 3.3 system floppies somewhere. And also a box of 8'', if my wife did not throw them away (which is very likely).

The speed of change in this area is indeed amazing