In German it’s “to compare apples and pears” which is even more preposterous since they are very closely related.
Apples and pears can *cross pollinate and can be grown on the same root stock.
So does ur mum
chef’s kiss
I’ve always taken it to imply that at a certain number of differences, the comparison isn’t useful anymore, not that there are no avenues of comparison at all.
“This orange isn’t nearly red or crunchy enough to be a good apple.”
I don’t know about you, but I sort all my fruit according to tanginess.
I tend to compare apples to carburetors.
One of them objectively tastes better.
They are very comparable. Both round fruit, often cut into wedges, both can be used to obtain juice.
I think what they saying “don’t compare apples and oranges” is trying to convey is that we shouldn’t judge an orange by the standards we judge apples. It would be silly to eat an orange and complain that it wasn’t enough like an apple.