At the first glance I thought 3 is smaller than 2, 4 is smaller than 3. But after reading your note, I realize they're of the same size. That's what "convention

At the first glance I thought 3 is smaller than 2, 4 is smaller than 3. But after reading your note, I realize they're of the same size. That's what "conventional" means for me. :-p