With meaningless signs for meaningless sounds, the alphabet required absolute abstraction. Absolute abstraction enabled the abstract absolute.
> The Greeks, who invented the first fully-fledged alphabet
In what way were the earlier alphabets (Proto-Sinaitic, Hebrew/Canaanite, Phoenician) not fully-fledged?
Are you suggesting a special significance regarding the consistent use of explicit vowels?
Vowels, yes. A sign for sound. Recording speech without making an interpretative guess. Otherwise, it slips toward recording events or ideas—a bit less abstract, a bit more associative/analog.
> The Greeks, who invented the first fully-fledged alphabet
In what way were the earlier alphabets (Proto-Sinaitic, Hebrew/Canaanite, Phoenician) not fully-fledged?
Are you suggesting a special significance regarding the consistent use of explicit vowels?
Vowels, yes. A sign for sound. Recording speech without making an interpretative guess. Otherwise, it slips toward recording events or ideas—a bit less abstract, a bit more associative/analog.