The brain has identified ways of protecting itself, beginning with its uncanny ability to recognize a biological form with only a few clues to the form’s shape. In other words, we’re really good at seeing ourselves. This isn’t something that needs to be taught— it is an instinctual perceptual phenomenon called “sensitivity to biomotion.”
On a bike, the unique up and down pedaling motion is what makes you recognizable as human. At night, highlight your feet, ankles, and legs with products that feature reflective materials. During daylight, wear fluorescent socks, shoes, covers, or warmers.