An anonymous reader quotes a report from The Guardian: Working with her Stanford colleague, Michal Kosinski, [Pin Pin Tea-makorn, ]a PhD student at Stanford] scoured Google, newspaper anniversary notices and genealogy websites for photos of couples taken at the start of their marriages and many years later. From these they compiled a database of pictures from 517 couples, taken within two years of tying the knot and between 20 and 69 years later.
To test whether couples’ faces grew alike over time, the researchers showed volunteers a photo of a “target” person accompanied by six other faces, one being their spouse, with the other five faces selected at random. The volunteers were then asked to rank how similar each of […].
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