Guy had done something to his front headlight, as well as putting on a tail tidy. It took me an extra couple of seconds to differentiate him from the background traffic, and I also had trouble seeing him from the back. I was making a left in an 80 to 50 transition zone, and he was doing well over 80. The left turn signal was red, or I might have gone. Wouldn't have hit him, and he wouldn't have hit me, but he might have gotten a thrill, or worse, panicked. Try to keep your bike and gear so that people can see you.