In my personal opinion the answer to the question has 2 main branches.
- What’d be the correct answer then once thats established and in conclusion of it:
- Why everyone is wrong yet it doesnt matter
The first is the specific.
What is the right answer?
Is it the source, the raw, the unchanged, unfiltered phenomena in it’s true self, or is it the representation of it inside the human brain, the “color”.
This is worth exploring because in reality, colors do not exist. They are simply a wavelength of light which our brain interprets as colors. We arent even capable of perceiving the entire spectrum of these wavelengths. In fact, what we see as colors is roughly 0.0035% of the estimated spectrum.
So would even the person with a perfectly intact sight, be correct about what they see?
Of course you could then argue that we do not need to compare to the unfiltered, unchanged phenomena, we can compare to it’s perceived effect, the color purple.
But then the next question would be: Which?
Color is a mental construct.
We can throw tests like the Isihara at it to see if people can correctly differentiate between colors, but what those colors are, how they are being perceived, that we do not know.
Is your purple the same purple as my purple?
Take 10 people with perfectly intact sight. Do those 10 people see the same thing? Perceive it the same way? Is #1’s purple the same as #2’s 3’s 4’s? And which purple is the correct purple? What would the right answer be?
This leads to the second point:
There is are multiple disconnects between reality and it’s downcast perception/representation.
The first is the biological. Most of the things we perceive are not reality. They are interpretations of it.
Everyone knows that your brain does not interact directly with the outside world, it uses nerve stimulus for data intake which then it converts, but not everyone knows how fundamental this is in the practice. It doesnt just mean that your brain is not exposed to sunlight or sound directly, it means that sunlight and sound does not exist in the first place.
Light is nothing more than electromagnetic radiation, and sound is nothing more than the mechanical effect of pressure waves traveling through air.
Light and sound are both transformed interpretations of reality, not reality itself.
In conclusion:
What is “right” always depends on the definition and parameters of what you consider to be right.
You could say that the man who was able to see the purple sunset is correct.
You could also say that nobody standing there can actually see the world for what it is, as it is.
You could also say that all three of them are correct because to us biological entities, reality will always be subjective. Reality is what we interpret it as, and as such, every each person who is capable of interpreting it, has already attained a form of answer which holds true for them.