How and When to Use Your Mobile Phone
Most evolution scientists assert that human language began 200,000 to 300,000 years ago and they use speech development as a defining feature, if not the defining feature of homo sapiens. People, of course, could communicate via body language and physical signaling of various kinds at some undefined period, as well. And pictorial communication, such as by cave paintings, are conventionally dated to about 30,000 years ago. Before 1844, real time talk required real time physical, in-person interaction. That meant that people were consciously or unconsciously perceiving not only the literal content of their verbalizations but also their body language and prosody (vocal pitch, length of sounds, loudness, and timber [quality of the voice]). Ancient wisdom acknowledges the importance of body language and prosody as expressed in the advice, “It’s not what you say but how you say it.” Not until the invention of the telegraph approximately...