Saying the thing that which is not

What is the point of communication if what your being told is false? I found what Gulliver's Master said at the beginning of chapter IV very thought provoking. Why do we communicate? So that information may be transferred to one another. In a world without lying communication is perfect, but when lying is inserted how can you be sure whats actually true? I would like to say that I would love to live in the world of the Houyhnhnm because I could trust everyone and I wouldn't have to be worried about being decieved, but then I think that it would be way to boring for all communication to be the relaying of facts to one another. However, I wouldn't want to know everything.