Originally Posted by CliffordK

I want to go straight ahead on the bicycle. But if a blinding car is coming, I have to look straight down, directly at the fog line (assuming there is one).

Maybe the issue is worse when there isn't a fog line to follow, so one sees nothing but the blinding bright lights.

Anyway, don't blind cars coming up from behind you

On the other hand, cars are more likely to dim their lights for bikes with bright headlights than they will dim them for ones with dim headlights (and the bike should do the same).