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Tech Head - The Technology Section
Einstein's Alcove
Eyesight colours....
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<blockquote data-quote="PoloMint" data-source="post: 330018" data-attributes="member: 175235"><p>But, if they always saw a negative image, and always had done, how would they know? How could you ask them?</p><p></p><p>You see a small range of wavelengths and think it/they are 'red'. 2CV has an idea of red and a small range of wavelengths he associates with it. But how do we know they are the same? The sensation he gets when he sees something red might be the same as the one you get when you see something blue, and vice versa. When you are both asked to point to something red, you would both point to the same thing, but your perception might be different.</p><p></p><p>What if you have only ever seen the world through a lens than showed you the opposite colour? The world would make sense, you could navigate around it, tell colours apart and take photographs, but the sensation / phenomenal vision you get when seeing a colour would be different to someone who hadn't been brought up with the inverter lens.</p><p></p><p>Finding a theoretical or practical way of proving/disproving/testing this is not very easy.</p></blockquote><p></p>
[QUOTE="PoloMint, post: 330018, member: 175235"] But, if they always saw a negative image, and always had done, how would they know? How could you ask them? You see a small range of wavelengths and think it/they are 'red'. 2CV has an idea of red and a small range of wavelengths he associates with it. But how do we know they are the same? The sensation he gets when he sees something red might be the same as the one you get when you see something blue, and vice versa. When you are both asked to point to something red, you would both point to the same thing, but your perception might be different. What if you have only ever seen the world through a lens than showed you the opposite colour? The world would make sense, you could navigate around it, tell colours apart and take photographs, but the sensation / phenomenal vision you get when seeing a colour would be different to someone who hadn't been brought up with the inverter lens. Finding a theoretical or practical way of proving/disproving/testing this is not very easy. [/QUOTE]
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Tech Head - The Technology Section
Einstein's Alcove
Eyesight colours....
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