If there were a problem with them knowing where I were, I'd surely be dead by now, based on the fact I ride much more than just primo divided highway. Example:


I'm not saying it's worthless for the overtaking traffic to have a depth cue, but let's face it: having the light run steady isn't going to fix the fact that it's still a point-source of light with no appreciable width or height. If you want to fix that, you add more lights and now you have divergence cues. Also, if you follow a rider with a common blinkie such as a PBSF or Mars 4, it's not like there's big dead spots in the flash pattern. The PBSF switches between its main and secondary LEDs to provide a near-nonstop effective light, the Mars 4 just flashes quite fast. I can't imagine "losing track" of the cyclist in the milliseconds that separate the flashes.

BTW, the strobe shown in that video is the most "aggressive" taillight I've ever used, the Nova BULL. It looks like an emergency-vehicle strobe because it IS an emergency-vehicle strobe. It's gotten unsolicited praise, and nothing else, from motorists who either want to know where to get one, or to tell me I was easy to see from a distance. Annoying, praiseworthy, whatever... I guess it depends on the viewer.