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Does everyone see the same colour when they see red?
Neuroscientists tackling the age-old question are coming up with some interesting answers.
Is the red I see the same as the red you see?
At first, the question seems confusing. Colour is an inherent part of visual experience, as fundamental as gravity. So how could anyone see colour differently than you do?
To dispense with the seemingly silly question, you can point to different objects and ask, “What colour is that?” The initial consensus apparently settles the issue.
You are confronted with an unsettling possibility. Even if we agree on the label, maybe your experience of red is different from mine and – shudder – could it correspond to my experience of green? How would we know?