> but the level of information you can encode with a syllabary is much higher
[citation needed]
It’s not clear how you can encode any more information with hiragana/katakana - the Japanese syllabaries - than you can with an alphabet. Indeed, it’s fairly clear the reverse is true - you can only really encode sounds for which the syllabary has symbols; conversely, as English demonstrates, you can encode a vast array of sounds while only having 26 distinct letters.
[citation needed]
It’s not clear how you can encode any more information with hiragana/katakana - the Japanese syllabaries - than you can with an alphabet. Indeed, it’s fairly clear the reverse is true - you can only really encode sounds for which the syllabary has symbols; conversely, as English demonstrates, you can encode a vast array of sounds while only having 26 distinct letters.