To make an analogy, the fact that an object is the color green is a fact about what wavelengths of light it reflects and absorbs.
...and also about how certain cells in your eye function. Which doesn’t change your analogy at all, but it’s sometims a useful thing to remember.
...and also about how certain cells in your eye function. Which doesn’t change your analogy at all, but it’s sometims a useful thing to remember.