> In general, I have a beef with 3-color models being taught as physical
> models instead of a model only for the human visual system. Even
> professionals who should know better often fail to differentiate the two.

It also becomes an issue with the human visual system when you are using 
(near-)monochromatic light sources to illuminate surfaces that are seen by 
humans (eg LED lighting).  It's best to work with the spectral data whenever 
you can, and only convert to a 3-colour model right at the end.

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