Google Photos' facial recognition and grouping algorithms are impressive. Each time a new person or pet shows up in your images, it creates a new profile for them and puts all their pics together. However, this is still a computer software and some things might trip it. A statue, a face in a book cover or poster, similar-looking people, and other factors may lead it to incorrectly tag persons, and that's where you usually intervene to manually fix things. Previously, Google didn't ask you to explain why you were removing a pic from a profile, but now it does, hopefully as a way to improve its algorithms.

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