Question 26:Hue and cry

People with red-green colour blindness have difficulty discriminating red and green hues. There are various forms of this condition such as:

Protanopia:Lacking the long wavelength sensitive rental cones, those with this condition are unable to distinguish between colours in the green-yellow-red section of the spectrum. They have a neutral point at greenish wavelength around 492 nm, which means that they cannot discriminate light of this wavelength from white. For the protanope, brightness of the red, yellow, orange colours is much reduced as compared to normal brightness. The dimming can be so pronounced that reds can be confused with black or dark gray, and red traffic lights appear to be extinguished. Violet, lavender, purple are indistinguishable from blue because their reddish components are so dimmed that they are invisible.

For example, pink flowers, reflecting both red and blue light appear just blue to a protanope. Unilateral dichromats report that with only their protanopic eye open, they see wavelengths below neutral points as blue and wavelengths above neutral points as yellow.

Another form is deuteranopia, where people, lacking the medium wavelength sensitive rental cones, suffer from the same hue discrimination problems, but without the abnormal dimming. Some other forms are protanomaly and deuteranomaly.

So after all this hue and cry, just connect the text (after reading it carefully) to the pic.

P.S. People who are bored and tired of reading the entire text, just read the first line. That should be enough.

Answer: Yes, Zuckerberg has Red-Green colour blindness, which results in Facebook's most prominent colour being Blue.