Since the 19th century, cameras have been able to capture images at different speeds, wavelengths, and magnifications, which reveal previously hidden worlds. What’s fascinating about the current changes in phone photography is that they are as much about revealing what we want to look like as they are investigations of the world. It’s as if we’ve discovered a probe for finding and sharing versions of our faces—or even ourselves—and it’s this process that now drives the behavior of the most innovative, most profitable companies in the world.