Graham Bell's telephone and David Alter's telegraph bridged distances, sending our voices and words across the miles and the continents. These new mediums for communication allowed us to talk to more people, more distant people, than ever before. It was not long before we dreamed of talking with video connections, and of holographic images projected into reality. The first of these dreams is already reality, and the second is sure to follow soon. This use of technology lets us send our words to each other, and the continuum of how realistic these communications are, how closely they approximate the experience of talking to someone face-to-face, is a measure of __communication richness__ [[[@Kirkman.Mathieu2005]]].

[@Kirkman.Mathieu2005

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