It's a discussion, did I not discuss?

Yeah, you're supposed to gather 10 guys names Mark and talk about it with them.

You dropped your arm badge:

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On the other hand, the nurse has potential for returning clientele. The husband does not. She can keep getting paid the longer her customers need her services over their lifespan, so it's more a question of short term profits over long term sustainability.

Oh who am I kidding? This is capitalism we're talking about, they'll always choose short term profits.

Yeah, additive vs subtractive color. Our eyes see light but light is reflected by pigment.

Pigment determines which colors are subtracted from light, so combining all pigments gives you black (little to no light reflected) (edit: this is also somewhat of a simplification, it can be more complicated than that). But combining different colors of light gives you white, if nothing is being absorbed.

Now whether the absence of color still counts as a color in and of itself in either system, I would still argue yes. Color is just our perception of light frequencies or lack thereof, so it's all subjective anyways.