Sorry, I don’t mean deep as in profound, but as in too far, too much. It seems like too much of a reduction.
I suppose the question to ask here is, if there were no people to have the idea, would there only be the fundamental objective existence, and no idea? I’d argue so.
No, I disagree. I can’t imagine a house, and then physically live in it. I can imagine my house, but my idea of my house and my house as it exists in reality are not one and the same thing. One is a representation of the other (you could argue that each represent each other, really), but they aren’t the same. The physical house is not an idea. And the idea of the house is not a physical object.
Yes, the sculpture is the medium through which the idea is conveyed. As opposed to the idea itself, which is not the medium through which it is conveyed. They are different things. And of course an idea which cannot be conveyed is still an idea, since there are no ideas which can be conveyed perfectly. You may get the gist of an idea you have to me, but I cannot get exactly the same idea as you from your sculpture, because the sculpture is not an exact copy of the idea. It is different, and because of the difference that comes from making a representation of an idea rather than an idea (and the similar effect from making an idea based on a representation of an idea), the initial, original idea is not conveyed in full.
The physical car and the idea of the car are two seperate things, most certainly. But the physical matter that the idea of the car is dependent upon is not the car, but minds. Without minds, you’d still have a car, but you couldn’t have the idea of a car.
I’m not claiming that the physical matter required is the representative object, but the mind. A sculpture isn’t an idea, it’s a representative of the idea. We could destroy the sculpture - but the idea would remain. Likewise, we could destroy the idea, and the sculpture would remain. The two are not the same. Likewise, were there no clay or forming materials, there could be no sculptures. Without minds, there could be no ideas.
I would have called it culture, I think.