Colorize me to the moon, baby.

I was thinking this week about colors. Especially the ones our cones detect - red, blue, and green. There's nothing inherently interesting about them if you look at them only as three colors (out of millions, billions, trillions, quadrillions?), but combined, they have interesting properties.
It's pretty obvious that the light spectrum doesn't necessarily match up with the color wheel of art. According to the color wheel, blue and orange are opposing colors (while the book says that yellow and blue are, in fact, the complimentary color set). There are other obvious discrepancies between the systems.
Red and green makes yellow, at least, according to our sight/when mixing light. When you mix them physically, with any medium (color pencils, watercolors, pastels, paints), you get an icky, brownish color that results from mixing two opposing colors. But how does this work?
To the right is a depiction of the RGB color model. As you can see, colors
like oranges and purples are results of different primary color balances (orange has a higher red concentration, while purple is more blue).
This has a biological basis - this is how our eyes perceive color.
But the art-y RYB color model, pictured to the left, seems to be how most physical media works. If you mix equal amounts of red and green... you don't get yellow! SURPRISE! Did that startle you!? I hope it did! I understand how this theory came to be, though - it was "invented" long, lonnnng, lonnnnnnnnng before the structure of the eye and color sight were adequately understood.
But the big picture, the big point to this wad of colorful text, is this question:
Are these two color models related? That is, while physical media may mix according to RYB, do we see it thanks to RGB? * **

*The answer, I think, is "probably". But, at the same time, there are many other different types of color models and they're all probably somewhat correct.
** THIS POST IS SECRETLY THE SECOND EDITION OF "Weekly Blogging Assignment". Don't take off its mask, or the festering bodies will get'cha!