And the idea is misguided there as well. Kanji are problematic because people who can't read them can't differentiate their shapes. Any unique silhouette -- eve

And the idea is misguided there as well. Kanji are problematic because people who can't read them can't differentiate their shapes. Any unique silhouette -- even a Latin letter -- is preferable to arrow diagrams, which end up unnecessarily similar to one another.