OK, this is genuinely scary. It's a picture of me, aged 5. It was taken in 1960. It was scanned and uploaded to Google Photos in 2002. No one has told Google where it was taken. But the map, bottom right, is correct.
Obviously, in 1960, my father's pre-war Exakta camera did not have GPS. Could you identify, from that picture, exactly where it was taken?
Google can.
Eerie… but then again context is everything. Google has access to a huge amount of information in the images and exif information if available. Correlating all of this across its huge user base provides possibilities we cannot even imagine.
These companies and their tools already know more of us than we know about ourselves. We are the product.
Ever realized why we need rules and regulations around privacy?