Languages in the Loglan family, notably Lojban, have an explicit audio-visual isomorphism which maps phonemes to/from letters. In theory, this should allow peop

Languages in the Loglan family, notably Lojban, have an explicit audio-visual isomorphism which maps phonemes to/from letters. In theory, this should allow people to learn to read and write long after they have learned how to listen and speak; in practice, it seems to lead to many alternative orthographies and a fragmentation of readability.