“Hue new? Scientists claim to have found colour no one has seen before”. Congratulations on a genuinely witty double pun in the online headline on your article, which was also in Saturday’s paper under a different heading.
And – forgive a little self-congratulation – my co-author Yan Wong reminds me that in our book, The Ancestor’s Tale (first published in 2004, with a second edition in 2016), we wrote: “This raises an intriguing possibility. Imagine that a neurobiologist inserts a tiny probe into, say, a green cone and stimulates it electrically. The green cell will now report ‘light’ while all other cells are silent. Will the brain ‘see’ a ‘super green’ hue such as could not possibly be achieved by any real light? Real light, no matter how pure, would always stimulate all three classes of cones to differing extents.”
