OST is closed for business but its spirit survives on my blog.
But the point of the logical move is that once you accept that words make the world meaningful—as opposed to the world having intrinsic, or natural, meaning that imposes itself on humans—then it follows that you cannot get outside of language to check and see if the language is accurate.
All you can do is argue and debate and impose and challenge meanings.
I would say the word “blue” has multiple possible meanings—from the sky to the sea to my daughters t-shirt to…. Most people would agree, particularly once you showed them an example of what you speak—my daughter’s “blue” t-shirt.
If you could get enough people to agree that the “tulip” was “blue” or breed a strain of “tulip” that everyone generally agreed was “blue,” then I think that there is no reason to say that a blue tulip is necessarily wrong.
On the other hand, you might be laughed out of the room and a lot of people might use the commonplace metaphorical phrase, “You are wrong!”