Which face is real?

Which face is real? is one of those sites where it makes you choose between real and fake things to test your powers of acuity and perception. Though the face-generating AI offers occasional duds (such as the one embedded above), I quickly realized that the reason I beat it is because I've become familiar with the telltale indicators of a neural-net creator: the odd warping patterns in the backgrounds, the peculiar inconsistencies, the particular pixelated patterns that crop up again and again. It would often have fooled me a decade ago, just as the first phonograph, hidden behind a curtain, fooled an entire audience in the 1880s.