Re: Be careful about differentiating by colour
The epic, well-known discussion of relativity and absoluteness.
My take is as thus:
What is color? After all, colors in all languages are adjectives. We describe something to be blue, green, red, whatever, because we perceive them to be thus.
Back to the example of the traffic light:
To a colorblind person, the light's colors are different.
Yet they are still sources of light that emit waves with a distinct wavelength that falls somewhere on the visible light spectrum.
The color might be red, but it's still light, and one with a wavelength of 700 nm.
TL;DR: Some properties are relative, others are absolute.
P.S. If a relative quantity is seen to be the same by everybody within the universe, does that make it absolute?
Biting the hand that feeds IT
