Yes! This drives me crazy. But I mention it to others, (and how to experience it), and their eyes don't perceive it.

What % of people are sensitive to this? Any medical documentation? Is NHTSA aware?

Just show them a video. Many cameras pick it up no problem.

Just about everyone. Wave your hand with fingers spread in front of your eyes and you will see it.

Could you please stop posting unsubstantive and/or flamebait comments and otherwise breaking the site guidelines (e.g. https://news.ycombinator.com/item?id=34794878)? We ban accounts that do these things, and I don't want to ban you.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful. The idea is: if you have a substantive point, make it thoughtfully; if not, please don't comment until you do.

Websearch 'FMVSS 108' for the relevant US regulatory framework.

Thanks. I'm scanning it, but it's huge.

Does it specify minimum LED refresh rate somewhere? Or is it lacking that today?

I usually use my phone's slow motion video to settle the matter. Negotiating where to sit on a restaurant is a prime use case.

It took me awhile to figure out why the LED tail lights made me have a specific weird feeling.

If you're old enough, you may have seen the science fiction children's show "Captain Power." The LED tail lights remind me of the target strobe meant to trigger the accompanying toys.

Of course if you're old like me, you probably only watched an episode to see what Lightwave3d was capable of, but ..

> Very easy to notice if you are glancing around.

See saccade:

https://en.wikipedia.org/wiki/Saccade