It's not a speed issue. They're in a blind spot. Your brain tells you that you can see everything, but it's incorrect.
My experiences have been under slow circumstances only. And that makes sense because the individual "lingers" in the blind spot (and perhaps matches your speed) if you're going slow. If you were going fast, the blind spot would be moving much faster and you would see them.
It's not a speed issue. They're in a blind spot. Your brain tells you that you can see everything, but it's incorrect.
My experiences have been under slow circumstances only. And that makes sense because the individual "lingers" in the blind spot (and perhaps matches your speed) if you're going slow. If you were going fast, the blind spot would be moving much faster and you would see them.