Comment by JoblessWonder
2 years ago
I used to have a lot of anxiety wondering if what my brain perceived as "Blue" was the same shade of "Blue" to other people. Like, sure, the sky is blue and a similar color to water for everyone.... but what if what I see as blue is actually red for other people and there is just no way to confirm because that is how our brain processes that frequency of light? I'm sure it isn't actually possible to confirm... but I was always interested in it.
Late addition to comment:
I just found this article that explains it well and has some theories on it: https://www.livescience.com/21275-color-red-blue-scientists....
Ultimately it doesn't matter. Your "blue" is just a translation of that frequency to some distinguishable impression to allow you to see. But it's a good bet that the same wiring that went into your brain making that translation also went into other brains.