Hannah Fry on selfies: we think we know what we look like, but we’ll never really know

Using Polaroids, film cameras and tape recorders, Carpenter showed the tribesmen what they looked and sounded like. At least initially, they were all completely freaked out by their photos. They covered their mouths, ducked their heads and turned away in a “terror of self-awareness”. But within moments, they became completely transfixed and wanted to capture their own photos. (Everyone, it seems, loves a selfie.)