why blue?
This is why you see a lot of public bathrooms with blue or purple lights.
https://abcnews.go.com/Health/blue-lights-drug-users-high/story?id=56140028
How blue lights can help drug users from getting high
Blue lights on skin make it harder to see surface veins.
How about a sprinkler that fouses every 45 minutes.
“why blue?”
My guess is if you’re only loosely connected to reality, a blue strobe is going to rock what little anchor you have left. If you’re high, or sick, a blue strobe will likely make whatever condition you’re suffering feel worse. At the very least, it’s a step away from normal and comforting.
For some reason, flashing a blue light, the junkies can’t find a vein.
Maybe to remind everyone to vote ‘rat?
Or maybe because it’s suggestive of police?