Interestingly I&#x27;ve read that people conversing in sign language don&#x27;t leave gaps in the same way, since &quot;talking&quot; doesn&#x27;t get in the way of &quot;listening&quot;, so both participants tend to &quot;speak&quot; simultaneously. This dovetails with the article: the limiting factor is not how long it takes us to think of our replies, but how much we can convey through speech without it becoming unintelligible.