Originally Posted by
banerjek
This can be the case for bikes too -- high lumen beams look like a light saber. But with a bike, you can easily change the mount/aim of the lights to mitigate this effect (and this is necessary).
I've been in fog so thick I once somehow lost the road even though it was perfectly straight, went over the embankment, and into a ditch filled with 3' of water 
Another reason to use bright lights in fog is to help motorists spot you out -- you're otherwise totally invisible.
Lol yeah that's what fog is like...
We could debate on fog I suppose, but fog acts differently than other stuff. More light can be significantly worse than less light, because the fog reflects the light back at you and it scatters on the moisture making it impossible to see through. Brighter is not better for fog.