Even the sender of a communication may be a source of error by phrasing something different from what they meant to convey. From not communicating in one’s nat

Even the sender of a communication may be a source of error by phrasing something different from what they meant to convey. From not communicating in one’s native tongue or not learning one’s native language well enough to simple brain-farts - there are numerous things that can lead to miscommunication on the sender side, too. Communication of complicated concepts is just incredibly lossy every step of the way.