>> >> I think it's pretty well established that human eye and brain physical
>> >> responses to colour are within close limits, apart from individuals with
>> >> damaged or malformed eyes or brains - and the 'colour blind' variations
>> >> which were largely unknown until John Dalton investigated his own vision
>> >> in the late 18th century.  There are simple tests for most forms of
>> >> colour blindness - but as language has to mediate the tests, it's
>> >> intriguing to wonder if (eg) the Himbra would be able to cope with such
>> >> tests designed by (eg) Germans.

>> > Or by Russians, who have one word for "blue" and a different word for "light
>> > blue"...or the Japanese, who use the same word for "blue", "green" and
>> > "sallow"...or Homer, who used the same word to describe the color of the sea, of
>> > wine, and of what we'd call a "chestnut" horse....r

>> Perhaps the Red Sea was a different colour too back then.

>Yeah -- it was "reed" color. Yam ha-Suf.