Hi tommio, that’s a really great question! I often wonder whether what I call ‘blue’, is what other people would call ‘green’ or ‘red’! The honest answer is that we’ll never know the true answer to this, unless we could become someone else for a bit and see for ourselves. From what we know about how light works, there’s no reason to suggest that we wouldn’t all see them the same way though – it’s much simpler that way, and sometimes, the simplest explanations are the most likely.
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