Information & Culture just published (paywall; or free pre-print) an article I wrote about “night modes,” in which I try to untangle the history of light, screens, sleep loss, and circadian research. If we navigate our lives enmeshed with technologies and their attendant harms, I wanted to know how we make sense of our orientation to the things that prevent harm. To think, in other words, of the constellation of people and things that are meant to ward off, prevent, stave off, or otherwise mitigate the endemic effects of using technology.
If you’re not familiar with “night modes”: in recent years, hardware manufacturers and software companies have introduced new device modes that shift the color temperature of screens during evening hours. To put it another way: your phone turns orange at night now. Perhaps you already use f.lux, or Apple’s “Night Shift,” or “Twilight” for Android.
All of these software interventions come as responses to the belief that untimely light exposure closer to bedtime will result in less sleep or a less restful sleep. Research into human circadian rhythms has had a powerful influence on how we think and talk about healthy technology use. And recent discoveries in the human response to light, as you’ll learn in the article, are based on a tiny subset of blind persons who lack rods and cones. As such, it’s part of a longer history of using research on persons with disabilities to shape and optimize communication technologies – a historical pattern that the media and disability studies scholar, Mara Mills, has documented throughout her career.