William Calvin and Derek Bickerton offer three ways for getting from ape behaviors to syntax. They focus on the transition from simple word association in short sentences (protolanguage) to longer recursively structured sentences (requiring syntax).
The debate on Nostratic- the "Mother Tongue." The New York Times, June 27, 1995.
There are surprising similarities among the languages of the world. Could it be that at one time long ago, we all spoke the same language?
SAFi is a lexeme of several groups of languages such as Indo-European, Semito-chamitic, ouralo-altaic and niger-kordofanian. Its distribution consolidates historical linguistic theories of Nostratic or Eurasian roots previous to the Indo-European one (-7000 years).
Robert K. Logan, Professor of Physics, argues that the origins of speech and the human mind emerged simultaneously as the bifurcation from percepts to concepts.
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