As a former neuroscientist who studied perceptual awareness, there&#x27;s lots of little things wrong with this article.<p>1) The RGB palette used in monitors most certainly does not span the whole gamut of human vision. Not even the wide-gamut monitors used professionally can do that yet.<p>2) The diagram showing each cone type&#x27;s peak spectral sensitivity is a bit misleading, too. The M- and L-cones are colored red and green, but if you notice carefully, their peaks lie in the green&#x2F;yellow area, so characterizing them as red&#x2F;green is misleading. And &quot;each of our cones seeing a primary colour (blue, green, or red)&quot; is flat-out wrong. Every cone fires in proportion to its overlap. The author clarifies this later, but it&#x27;s best to tell people the caveats up front. Continually referring to &quot;primary&quot; colors is adding to the confusion here.<p>3) WhIle they did cite an article pointing out that ratio-computing cells exist in the retina, it does NOT follow that &quot;it is the main source of information that the brain has to help it identify the wavelengths of light&quot;. The paper itself only talks about spectral separation in retinal cells pre-brain. I don&#x27;t know where the author got the idea that ratios are the main source of info sent to the brain. Amplitude information is sent, as well.