Hi Ben, thanks for your thoughts about iconic language.
1. About the cultural aspect to human language. Yes, that's one thing I'm 'afraid' of. That it's a parallel to ecological systems, with
niches to be filled. And species (language species) that are optimized
locally. Language 'in broad terms' (mathematics, chemical notations e.g.) are specialized too.
2. Interesting. I read that the shorthand version of SignWriting was better than ordinary steno (readable by third parties).
3. Thanks for the book title. The efficiency seems to be comparable between a signed and spoken language. Yes, I found a study in which our short memory capacity may be found guilty in respect to that. In that case, the conceptual speed with the aid of an iconic language can't perhaps be accelerated.
4. Thanks for the paper! Sometimes it's harder to find articles that are critical than ideological. Fact is indeed that Esperanto didn't make it.
Yes, next time I will open a new thread about iconic communication. I neither want to waste bandwidth in Brad's thread. Thanks for your time!