"It's a perfect parallel to ASL." Untrue. ASL is its own, unique language with distinct vocabulary, syntax, morphology and grammar. It's actually of signific

"It's a perfect parallel to ASL." Untrue. ASL is its own, unique language with distinct vocabulary, syntax, morphology and grammar. It's actually of significant interest to linguists due to the interesting spatial frames that appear to be unique to visual language. However, this mechanism for communication does parallel books that have been used for years and electronic devices involving Bliss symbols (a paper from 1981 describing this: http://www.speech.kth.se/prod/publications/files/qpsr/1981/1981_22_4_029-038.pdf http://www.speech.kth.se/prod/publications/files/qpsr/1981/1...)