Shymer said:
Some questions:
If the only person observing the sword knows nothing of swords, is it still a sword?
Invalid question. The person has no knowledge of the concept "sword", so he cannot ask the question. It is neither a sword nor not-a-sword to him. He simply doesn't know that word and concept. However, he could analyze that thing, and come to understand what its purpose is and how it works. He may not call it sword, but he will have understood it.
If the sword has an imperceptible hairline fracture in it, is it still a sword - or a broken sword? Is it a broken sword only when you know of the break? Clearly the sword is broken, but there's no-one to observe it in that state.
What is the criterion for broken? How efficiently it achieves its purpose? In that case, we have a spectrum. Where YOU draw the line, is arbitrary, because there in truth is no "line".
What you come to realise is that "sword" is a convenient and simple, but imperfect and subjective, description of a thing. Brokenness is similarly a convenient and simple, but imperfect and subjective, description of a state of a thing.
No, neither "perfection" nor "subjective" exists. Appealing to subjectivity or objectivity is simply a lame-ass way to cop-out of a difficult problem, instead of investing the effort necessary to understand what's going on.
The interesting part is when one person sees a sword, and another sees a plough and they talk about it.
That is just words. Words obviously are arbitrary, just as you can use anything to symbolize something else. It is arbitrary, not because its "subjective", but because the symbol indeed does not matter - it is just a method to communicate what matters.
"Sword" is an opinion. "Broken" is an opinion. People with opinions go around bothering each other.
Oh god..... good that you spelled the thread-topic "filosofical"... it aproximates the level of philosophical thinking at work here. What is this thread - simply a hook to promote the belief in the subject/object dichotomy?
What you're dealing with here, is not an ontological issue. It's an issue of language and peoples lack of understanding language and themselves.