henry copeland:

How Turn-Taking and Short Gaps in Conversation Are Universal - The Atlantic

Instead, they uncovered what Levinson describes as a “basic metabolism of human social life”—a universal tendency to minimize the silence between turns, without overlaps. (Overlaps only happened in 17 percent of turns, typically lasted for just 100 milliseconds, and were mostly slight misfires where one speaker unexpectedly drew out their last syllable.)
- www.theatlantic.com