Why Do You Understand the Person Better When Talking on the Phone?

Michael Kraus's research upends a decades-old myth: the famous "93 percent nonverbal" statistic, born from two 1967 contradiction tests, was never meant to describe real conversation. When participants judged recorded speakers across four channels, audio-only matched full video in accuracy. Silent faces came dead last. A pitch-black room experiment confirmed the pattern: strangers read each other slightly better without sight. The culprit isn't missing information; it's misallocated attention. Turn the camera on, and focus drifts from voice to face, from tone shifts and mid-sentence pauses to the weakest signal of all.

You'll learn:

- Why the face alone ranks last among communication channels

- How video calls quietly pull attention away from vocal cues

- What a flat computer voice reveals about human connection