But red exists only because we have the experience of seeing red. That is, red exists because we have found it useful to tell red apart from other colors. We can “objectively” define red to be light with a wavelength between 620 and 750 nanometers, but we define it thus because those wavelengths correspond to what many people subjectively identify as red. Thus, whether or not an apple is red is neither a properly objective nor subjective fact, but intersubjective knowledge that depends on both the world and how we experience it. So it goes for all truth that can be known.
At first glance, red seems like such a special color to me. It’s the color of blood and many fruit, the advanced color that primates and flying animals see and other animals can’t distinguish, it’s the most primitive step towards heat vision, and it’s the color at the lowest end of the range of common electron bandgap. Obviously the word itself is kind of arbitrary but the color seems as non-arbitrary as could be.
At first glance, red seems like such a special color to me. It’s the color of blood and many fruit, the advanced color that primates and flying animals see and other animals can’t distinguish, it’s the most primitive step towards heat vision, and it’s the color at the lowest end of the range of common electron bandgap. Obviously the word itself is kind of arbitrary but the color seems as non-arbitrary as could be.