Based partly on this evidence, a controversial recent paper by Farmer, Sproat, and Witzel (2004), argues that the Indus system did not encode language, but was related instead to a variety of non-linguistic sign systems used extensively in the Near East.

• 基于这种证据，一篇有争议性的论文最近由法玛、斯波特和韦兹尔（2004）发表了，争论说印度体系并没有编码的语言，而是广泛地使用近东的各种非语言符号系统。