I'm curious about how writing systems like Burmese or Thai - the characters of which look to my untrained eye far more similar than Latin or Japanese characters - are distinguished by native readers, and non-native readers.
Have there been any studies done into whether the characters in certain writing systems are more or less visually distinct?
By this I mean, many of the glyphs are easy to differentiate from one another, as opposed to
d, for example, or
<ツ> in Japanese.
I'd be interested to see whether anyone has come up with a way of comparing different writing systems according to their distinctiveness.