But it does mean that the writing of King Lear is less of an epistemic achievement than, say, the laws of physics, which are not dependent on a particular species' form of communication.
If King Lear is (claimed to be) a good work, given a certain language (humanity? evolutionary history? political history?), does the recognition of its supposed greatness survive deletion of the knowledge about what the kewl kids think is great?
If people continued to speak English, but King Lear fell out of fashion and later was found, but disconnected from anyone's recommendation, would people still decide it was better than most other works? Would they decide it for the same reason?
Do children spontaneously flock to King Lear at a certain age, even when it's not recommended to them by a True Literary Authority?
If King Lear is (claimed to be) a good work, given a certain language (humanity? evolutionary history? political history?), does the recognition of its supposed greatness survive deletion of the knowledge about what the kewl kids think is great?
Of course not. It doesn't even come with 3D special effects!
Today I looked at the above illusion and thought, "Why do I keep thinking A and B are different colors? Obviously, something is wrong with how I am thinking about colors." I am being stupid when my I look at this illusion and I interpret the data in such a way to determine distinct colors. My expectations of reality and the information being transmitted and received are not lining up. If they were, the illusion wouldn't be an illusion.
The number 2 is prime; the number 6 is not. What about the number 1? Prime is defined as a natural number with exactly two divisors. 1 is an illusionary prime if you use a poor definition such as, "Prime is a number that is only divisible by itself and 1." Building on these bad assumptions could result in all sorts of weird results much like dividing by 0 can make it look like 2 = 1. What a tricky illusion!
An optical illusion is only bizarre if you are making a bad assumption about how your visual system is supposed to be working. It is a flaw in the Map, not the Territory. I should stop thinking that the visual system is reporting RGB style colors. It isn't. And, now that I know this, I am suddenly curious about what it is reporting. I have dropped a bad belief and am looking for a replacement. In this case, my visual system is distinguishing between something else entirely. Now that I have the right answer, this optical illusion should become as uninteresting as questioning whether 1 is prime. It should stop being weird, bizarre, and incredible. It merely highlights an obvious reality.
Addendum: This post was edited to fix a few problems and errors. If you are at all interested in more details behind the illusion presented here, there are a handful of excellent comments below.