Hunter-gatherer's brain did not evolve to facilitate unambiguous thought transmission. Speech evolved to be very visual, spacial, quantitative and political. A

Hunter-gatherer's brain did not evolve to facilitate unambiguous thought transmission. Speech evolved to be very visual, spacial, quantitative and political. Ability to lie efficiently is evolutionary trait. Sometimes, we don't even need words for that. And sometimes we lie by pronouncing exclusively true words and sentences. Ambiguity of speech always was a feature. None of that makes work of NL researcher easier, of course. Understanding a sentence is not like decoding or decompressing, it is more like trying to guess what is utterer up to, politically, and if he is a friend. And only then there is deciding where to steer according to what he says. And for that we sometimes should start decoding message, but only with sender's goals firmly materialized in mind.