Except you just compared them in saying they are both fruit. In fact, saying they are both fruit is finding a commonality between them when comparing. There are many metrics on which Apples and Oranges can be compared. They are different colors, have a different internal structures, and different juice content. These are negatively correlated comparisons. More positive correlations would be that they are both roughly spherical, provide vitamin C, and grow on trees.
I have always hated that expression. You can compare anything since comparison is just the act of identifying similarities and differences (positive and negative correlations). One can make meaningful comparisons between and apple and a suspension bridge if the situation calls for it.
Except you just compared them in saying they are both fruit. In fact, saying they are both fruit is finding a commonality between them when comparing. There are many metrics on which Apples and Oranges can be compared. They are different colors, have a different internal structures, and different juice content. These are negatively correlated comparisons. More positive correlations would be that they are both roughly spherical, provide vitamin C, and grow on trees.
I have always hated that expression. You can compare anything since comparison is just the act of identifying similarities and differences (positive and negative correlations). One can make meaningful comparisons between and apple and a suspension bridge if the situation calls for it.