[little man]

Originally Posted by Kobi

Is it a false understanding or an incomplete understanding? Or, perhaps did we ask the wrong question?

Example. A generalize agreement over centuries and today is the sky is blue. But by todays knowledge we know that when transmitted light such as sunlight enters our atmosphere it collides with the oxygen and nitrogen atoms. The color with the shorter wavelength is scattered more by this collision. Because violet and blue are the shortest wavelengths the sky appears to be violet / blue. But because our eyes are more sensitive to blue light than they are violet light, we perceive the sky as blue.

So is the sky blue because it is blue or is it blue because human eyes perceive it is blue? Or is it blue because the neurochemistry of the brain is telling the eye what it is perceiving is the color blue? Or, have I now totally confused even myself?

for me, this tracks back to relativity. relative to time, perception and (as you've stated) generally agreed upon notions.

if you take into account folks who are color blind, animals that don't see color...where does that leave the 'factuality' of "the sky is blue"?