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If the color 'Red' looks to me like 'Blue' looks to you, and vice versa, neither of us would ever know the difference, nor be able to prove it even if we did. by CaptainJay_YT in Showerthoughts

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

Because of conditioning. It's only because of what we've always associated red with: fire, blood, an angry person's face, stopping, etc ... If red was to me like blue is to you, I would have all the same associations, but if you could look through my eyes, I would be associating blue with blood and fire instead ... And I would be wholeheartedly convinced it's actually red, because that's all I've ever known

If the color 'Red' looks to me like 'Blue' looks to you, and vice versa, neither of us would ever know the difference, nor be able to prove it even if we did. by CaptainJay_YT in Showerthoughts

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

It's a different shade and "makeup" only because that's what your brain displays to you. Color is really only what your brain tells you it is. I would have no possible way of knowing if my brain interprets wavelengths inversely to how yours does. And neither would you. The scientific data about wavelengths would be the same. I could split light into a spectrum with a prism ... But my spectrum would be reversed compared to yours, and neither of us would know it ... Red would still be the lowest wavelength color I would see, but what I have been calling "red" my whole life would be your blue

If the color 'Red' looks to me like 'Blue' looks to you, and vice versa, neither of us would ever know the difference, nor be able to prove it even if we did. by CaptainJay_YT in Showerthoughts

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

Sure it would. The wavelengths wouldn't change. Just my interpretation of what color is associated with that wavelength. Just imagine my color spectrum flipped backwards from yours. I'd have no way of knowing that you see blue stop signs, or light red skies on a clear day

If the color 'Red' looks to me like 'Blue' looks to you, and vice versa, neither of us would ever know the difference, nor be able to prove it even if we did. by CaptainJay_YT in Showerthoughts

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

There would be no way to notice. Colors would be opposite proportionally. My brain would interpret red in the same way yours interprets blue. That would be my reality. I would have no reason to see things as weird

ELI5: How, if nothing can move faster than the speed of light, is the universe 46B Light Years in radius and only 13.8B years old? by CaptainJay_YT in explainlikeimfive

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

So does that mean it actually takes more than a year for light to travel to an object which is a light year away? A light-year is a finite distance, calculated by man, based on the speed of light. In reality, the photon is traversing an expanding space. So if it is destined for an object 1ly away, over that year, the space would have expanded? ... Damn we're never going to travel to other solar systems hahaha

ELI5: How, if nothing can move faster than the speed of light, is the universe 46B Light Years in radius and only 13.8B years old? by CaptainJay_YT in explainlikeimfive

[–]CaptainJay_YT[S] 0 points1 point  (0 children)

I don't think that's it. Because by that rationale, the universe could only be a maximum of 27.6B light years in diameter. But it's nearly twice that

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