My time sink

The human eye only has three types of color sensitive cones, which detect red, blue, and green light. Your brain is making up every other color you perceive.

Let’s have a little fun with that thought. This is the visible spectrum of light.

You will of course note that yellow is on the chart. Yellow has a discreet wavelength, and is therefore a distinct physical color. But we can’t see it.

“Sorry, what the fuck?”

What we call yellow is just what our brain shrugs and spits out when our red and green cones are equally stimulated. We have light receptors that can pick up on the physical spectrum of light we call yellow: that’s why yellow things don’t just look like moving black blocks to us. But your brain has no fucking idea what the color yellow looks like. 

Some animals have eyes that can perceive the color yellow! Goldfish have a yellow cone in their eyes. If they could talk, they could tell us what yellow looks like. But we wouldn’t be able to understand it.

What your brain actually sees of the color spectrum:

We can measure the wavelength of light, so we know that when we see ‘yellow,’ we are seeing light in that 550-ish nanometers range. But we don’t have a cone in our eyes that can pick that up. Your brain just has a very consistent guess about what color that wavelength of light could be. We decided to name that guess ‘yellow.’ We can’t imagine what yellow really looks like any more than a dog can imagine the color red.

Here’s the funny thing: your brain is never perceiving just one photon of light at a time. Something like 2*10⁸ photons per second are hitting your retina under normal conditions. Your brain doesn’t individually process all of them. So it averages them out. It grabs a bunch of photons all coming from the same direction, with the same pattern, and goes, “yeah, that cup is blue, fuck it, next.”

That’s how colors blend in our eyes. So sure, if a photon of light with a wavelength of 550 nanometers bounces into our eyes, we see what we call “yellow.” But if we see two photons at the same time, coming from the same object, one of which is 500 nms and the other of which is 600 nms, your brain will average them out and you will still see yellow even though none of the light you just saw was 550 nms.

So how does magenta factor into this?

Well, as we’ve just established, when your brain sees light from two different slices of the visible light spectrum, it will try to just average them together. Green plus red is yellow, fuck it. If it’s more red than green, we’ll call that ‘orange.’ Literally who gives a shit, we’re trying to forage over here. There are bears out here and it’s so scary.

What happens if you take the average of blue and red light, which we perceive to be magenta? What’s the centerpoint of that line?

Fucking green.

Hey, that’s not gonna work? We live on a planet where EVERYTHING IS GREEN. If something is NOT green, that means it’s either food, or a potential source of danger, and either way your brain wants you to know about it.

So your brain goes, WHOOPS. Okay - this is fine. We already made up yellow, orange, cyan, and violet. We’ll just make up another color. Something that looks really, really different from green. 

And so it made up magenta.

So, physics-wise, is magenta “real?”

No; there’s no single wavelength of light that corresponds to magenta. But you’re rarely seeing only a single wavelength of light anyway. And even when you are, every color other than RGB is a dart thrown on the wall by your meat computer. This is the CIE Chromaticity Diagram:

Explaining this thing is a little more than I want to take on on a Saturday morning, but I’ve included a link above that goes into it a little more. The point is that only the colors that actually touch the ‘outline’ of the shape actually correspond to a specific wavelength of light. All of the other colors are blends of multiple wavelengths. So magenta isn’t special.

Given that color is just a fun trick your brain is playing on you to help you find food and avoid danger, is magenta real?

Yeah, absolutely. Or at least, it’s just as real as most of what we see. It’s what we see when we mix up blue and red. It would be disastrous from a survival standpoint to perceive that color as green, so we don’t. Because it’s not green. Light that’s green has a wavelength of around 510 nm. Stuff that’s magenta bounces back light that is both ~400 and ~700. Your brain knows the difference. So it fills in the gap for you, with the best guess it has, same as it does with your blind spot.

Yall.

To explain: West Saxon and Anglian are both dialects of Old English. West Saxon was the politically dominant dialect, but Anglian was the more popular spoken dialect. So a lot of Old English texts are written in West Saxon, but what we know as Middle English and Modern English descended more from Anglian because it was spoken by more people.

So grey (the Anglian word) shows up when authors are describing everyday stuff. Like in this sentence describing a grey beard from Holy Boke Gratia Dei: "The hed of Petir is a brood face with mech her on his berd and that is of grey colour be twix whit and blak."

Any Middle English text you read, you'll find Anglian grey is the word the author prefers to describe everyday things. Grey wool, grey feathers, grey stones, grey horses.

By contrast, gray (the West Saxon word) shows up when authors are describing the qualities of light.

A gleaming gray sword, a deep gray lake, a misty gray morning, cold gray marble, sad gray eyes. Like in this sentence from The Siege of Jerusalem: "They glowes of graie steel that were with gold hemmyd." More often than not, gray describes an impermanent or glimmering quality of light.

There's even an instance where a Middle English author uses both, and you can see how one spelling is more about the quality of light while the other is more about the color of the animal: "The cerkyl or the roundel off the eye ys sumtyme graye lyke the ey off a catte, sumtyme blak grey lyke the eyn off doggys."

("The circle or round of the eye is sometimes gray like the eye of a cat, sometimes black-grey like the eyes of dogs.")

wanderlust and what you could become

he then proceeded to tell the tale of when he and his friends went backpacking to greece back in their early 20s. then one day they found themselves completely penniless. so they decided that the only reasonable thing to do was to set up acrobatic shows in skimpy outfits on the beach at day, and then drink up the money at night.

after a week or so they gained some traction, and a gang of young greek men walked up to them like “hey y’all are cool as hell, can we join y’all for drinks tonight?” and my brother’s professor was like “of course! y’all have to wear these revealing outfits and do somersaults with us tho” and the greek gang said “sounds dope. y’all are invited to live with us for however long y’all want.”

anyhow, they proceeded to live like this for the better part of 3 months, doing shows, drinking, and sleeping at the greek gang’s apartment. but after a while they decided enough was enough, and said thank you for everything, but we’re going back to sweden now. and the greeks said “sure! love y’all have a safe trip xx”

half a year later my brother’s professor gets contacted by the greek police. they ask him about the months they spent in greece, and then informs him that their greek friends have been convicted of serial homicide and robbery. that the group of young greek men had joined up with several tourist groups for several years “for drinks”, and then killed and robbed them all, terrorising the beach city for several years. with one exception, of course, because “this one group of swedish acrobats in slutty strongman suits were just ‘so damn nice’”.

[image id: a four-page comic. it is titled “do not stand at my grave and weep” after the poem by mary elizabeth frye. the first page shows paleontologists digging up fossils at a dig. it reads, “do not stand at my grave and weep. i am not there. i do not sleep.” page two features several prehistoric creatures living in the wild. not featured but notable, each have modern descendants: horses, cetaceans, horsetail plants, and crocodilians. it reads, “i am a thousand winds that blow. i am the diamond glints on snow. i am the sunlight on ripened grain. i am the gentle autumn rain.” the third page shows archaeopteryx in the treetops and the skies, then a modern museum-goer reading the placard on a fossil display. it reads, “when you awaken in the morning’s hush, i am the swift uplifting rush, of quiet birds in circled flight. i am the soft stars that shine at night. do not stand at my grave and cry.” the fourth page shows a chicken in a field. it reads, “i am not there. i did not die” / end id]