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imgroxx t1_iuet8uv wrote

Counter question: are you sure they're in separate lines?

It looks like a continuous gradient to my eyes, I've never seen "bands".

There's more yellow and red than others to me, but I'm pretty sure that's largely because the middle is the most intense (you can easily see this with black and white photography) and red stands out more noticeably against the blue sky than the bluer half.

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MjHomeschool t1_iuhah3z wrote

That’s one of those envisioning things at play. Most people can’t detect slight variations in color even when they can see them, so while you do indeed see a gradient your memory tends to trim it down to less variance. It’s estimated that we can discern around a million distinct colors, but remembering that is difficult for all but a very small number of people. Most of just remember the idea of a rainbow and then reconstruct the imagery later.

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