Interesting but a little off topic:
I was walking the dog the other night about 10pm and came upon a young woman with a 4X5 camera making a picture from a building.
I immediately began picking her brain and as to light meters she doesn't use one.
She uses a Fuji color film and 90% of her photography is at night. She knows the film so well she doesn't need to meter a scene. Her exposures are anywhere from 6 to 30 minutes depending. AND, she sells her work through galleries and has dealers.
What does it mean? Know your tools.