I tested both Sonnet and Haiku from Claude, which got it right 0/10 times in their original test, and they both passed. Here's the Haiku output:

"You should *drive*!

The trick is that you need to take your car to the car wash to get it washed. If you walked, your car would still be at home, unclean. So while 50 meters is a short distance that you could walk under normal circumstances, in this case you have to drive because your car is what needs to be washed."

For the sunset example then, a natural question (for me) is then why isn't the sky green in the transition from blue sky to red sunset sky?

Your intuition isn’t far off; there is an angle where the weight of green relative to the sum over wavelengths sees a local maximum. But it doesn’t dominate. In that transition zone, there is still an overlapping, transitioning abundance of redder and bluer wavelengths, adding with the green. Consequently, you see red, going into a red+green transition (== oranges, yellows), go into into a green+blue transition (== cyan), which already has few photons relative to the red and yellow zones, so it’s a dark/weak cyan, before it blends into the darker blue of the night sky.

Because the color of the sky is determined by a shifting mixture of wavelengths, not a single shifting wavelength.

Basically, the scattering process that "remove" blue from the spectrum also removes green, albeit to a lesser extent. There are some greenish and yellowish wavelengths in the sunset sky, but they're dominated by red, so the overall color appears red or orange.

In order for the sky to look noticeably green, there would have to be something that scattered reds and blues, without significantly absorbing green.

If you try to interpolate between sky-blue and orange using graphics software, the result depends on what "color space" you're using. If your software interpolates based on hue, you might see green (or purple) in the middle. But that's not physically realistic.

A realistic model is to interpolate each wavelength of the continuous spectrum separately. Interpolating in RGB color space is a crude approximation to this. And if you try the experiment, you'll see that the midpoint between sky-blue and orange is a kind of muddy brown, not green.

You won't get a green sky, but at least there is a meteorological optical phenomenon called the green flash around sunset. To see it, I think, you have to know what you're looking for - and you need good conditions.

It can be - https://en.wikipedia.org/wiki/Green_flash

That's refraction not scattering though.

So green doesn't get its own clean window the way blue-at-noon or red-at-sunset does

Blue + Green + Red = White

Green + Red = Yellow

Red = Red

That is the natural transition from overhead sun to sunset as each higher energy wavelength gets cut off more and more. When blue is mostly gone and green starts to fade we call it the Golden Hour.

I thought of this while working on a front-end project with many different files, and it was getting quite annoying to have to go to each file and copy and paste it in. This also works around upload file limits such as the 5 for Claude. Ironically it was also written entirely by an LLM.