Humans have an intuition of when two objects or places are close or far away from each other which is seems to be relative rather than absolute. One might say that Germany is close to France, my house is close to the supermarket, etc., and then say that two plants in the backyard are far from each other.
Even when this is subjective, based on what do we classify two objects as being far, close, or somewhere in-between? Is it just the the size of the objects? what about objects of very different sizes like a house and a pen?
What about the distance from us to the objects? Would we consider two trees to be close when we are very far away, but then consider them far away when we are close to them?
What are the parameters that we base this decision on?
How would a computer classify two objects in such a way that it "mimics" the human decision.