On Fri, 7 Feb 2020 08:23:03 -0800 (PST), polygonum_on_google wrote:

Ambient light is not an adequate basis for dimming. If they could assess
how visible they are to anyone who might need to see the light, then
that would make sense. Like through the spray you are throwing out
behind at speed on a motorway.

Or just fog in daylight. Confuses the auto lights on my car, can be
in thick fog but with a relatively high light level so it switches
the lights off...

--
Cheers
Dave.