"Spectra"(capitalized for grammatical reasons only)
IS a name.
:meh:
It is used to pick out
"the distributions of intensities of light as a function of frequency across a band of frequencies". You said so yourself.
That is your definition.
Verbatim. Those distributions of intensities of light existed in their entirety prior to our naming and describing them. Those distributions are discovered. Distributions of light do not require being perceived, attended to, and subsequently named and talked about by us in order to be a distribution of light.
But... "spectra" is a human word, and according to you... as a result it picks out a human group.
If all of the stuff that you've been saying about spectra is true, then spectra must exist in their entirety prior to our naming and describing them. All such things are existentially independent of us. If we ever acquire knowledge of these existentially independent things, then they are discovered. We can get such things(that which exists in it's entirety prior to naming and descriptive practices wrong, both by definition and subsequent description... ...if and when we get the elemental constituency wrong.
Color refers to a component of vision. Colors are distinct from spectra in that vision is not capable of measuring spectra in any animal's vision; for any animal capable of color vision, there will always be "metamers"... distinct spectra that map to the same color.
Colors are distinct from spectra. Spectra map to the same color. Metamers are the name given to distinct spectra that map to the same color. So, metamers are specific spectra that map to the same color. That's not about our language use. It's about color vision capability, which does not require our reporting upon it. It exists in it's entirety regardless of whether or not we ever acquire knowledge of what it always takes in order to happen. It most certainly does not require our account of it. It requires colors and spectra that map to them because it requires metamers. It does not require any of the language used by us as a means to account for color vision capability.
Color vision capabilities include distinct spectra that map to the same color. That is to say that there is a direct correlation between spectra and colors, in that certain spectra in certain conditions, are perceived as the same color. Because an animal's color vision capability
does not require our naming and talking about it, but it does require spectra mapping to the same color... then color, spectra, and metamers do not require our naming and talking about them.
"Spectra" is a name. Spectra does not require being named. In this case, and all others like it, any name will do. What's being named doesn't change one iota by what we say about it... if we have it right, that is. The same is true with colors.
Seeing red requires seeing the color red, because red is a color. Seeing a thing we've named red only requires seeing a thing that we have named red, not seeing its color. — InPitzotl
It seems you're having a bit of trouble following along. I've not talked about seeing a thing we've named red, as though that is the same as seing it's color
as red. You have. The earlier bits about seeing the crayons with the name on them and all that...
Keep up. I'm not going to point out each and every time you misattribute meaning to my words and then put it on display with such non sequiturs. Not being nit picky or anything. I just want to focus more upon what you've been claiming, and the consequences thereof, especially when holding different statements next to one another for meaningful comparison.
Analysis.
Seeing red things is seeing things that are reflecting at least one of the distributions of intensities of light as a function of frequency across a band of frequencies(spectra and/or metamers) that we've since named "red".
"Red" is a human word, so it refers to a human group. — InPitzotl
Surely you are not asserting this. What are you doing with the word "so" here? So because "red" is a human word, it refers to a human group???
:brow:
Sorry, but I have to call "bullshit" here...
Using the term "red" in normal parlance is to pick out all things we've given the namesake to... including, but not limited to, certain spectra that map to the same color in certain animals with color vision capability. Spectra are not a human grouping. Color vision capability is not a human group. "Spectra" is a human word. "Color" is a human word. "Mt. Everest" is a human word. None of the referents of those words - which act as names - are human groupings. Human groupings are existentially dependent upon human language use. Spectra, colors, and Mt. Everest are most certainly... not.
All human groups are existentially dependent upon humans. Colors are not.
"Red" is a human word referring to that which existed in it's entirety prior to our naming and descriptive practices involving the term.