With no good reason I had a look at my computer's storage going on the
About this Mac. Here is the display:
The pink bar doesn't make much sense. It obviously does not represent the 80.67GB of free storage. Two sections correspond to pink; "Photos" and "Backups". I obviously don't have 140.76TB of backups. And probably not on this computer that has only 320GB of storage.
What is going on here?