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I wish this comment stood out more but HN has eliminated displaying of points.

Huh? Points haven't been displayed on comments for at least 18 months.

Yes, that was his point. At some point in the past, points were displayed on comments. But, as you pointed out, now they are not.

That's a nice point about points.

surgery first, then makeup, then lighting, then photoshop

I would think there would be even fewer "eigenfaces" if someone had Photoshopped them to look alike.

Some of the photos were taken at slightly different angles. Perhaps that accounts for some eigenfaces.

That would make sense. Eigenfaces are notoriously bad about translation/rotation invariance.