I like that, especially this insight:
when two things have very few attributes in common or the attributes they can be compared on are very broad, general or abstract, it is harder to compare them.
A melon and a pogo stick are harder to compare, for their defining attributes hardly overlap except on a very abstract way.
Good on you to say “harder to compare” :D
it’s all semantic subjectivity. Poetry compares dissimilar things and equates unequal concepts all the time.
Another thing worthwhile to point out; subjectivity. I guess that part bothered me too. “cannot be compared” attempts to establish some kind of objective truth, whereas it only can be a subjective opinion.
The reference to poetry was nice, too.
Hehe, right! (technically). Context matters! When talking about fruit, people usually don’t include stellar objects when weighing their options. Still true when taking in consideration that “apples to oranges” is usually metaphorical and not really about fruit.