“Big Brother is Watching You.”
― George Orwell, 1984
As I was working on the logo for this site, I kept changing my mind about my banner, so I uploaded, deleted, uploaded, re-uploaded, deleted photos, etc.
But Google never forgets; once you upload anything on blogger, it remains there, even when you later delete it from your particular site.
In this case, the photos were benign, and Google decided that my discards were interesting enough to create two photo bursts.