This is why we have verbal cues for conversation that indicate that the listener-now-speaker has understood what was said and is formulating a reply: &quot;hmmm, I see. But have you considered, perhaps, that...&quot;<p>Conversation, as opposed to written text, has a lot of &quot;filler&quot; designed to give the conversant time to formulate their words.<p>Your implication is that people who respond &quot;on time&quot; have thought less about their response than those who do not. More likely, they have just a better intuition for conversation that allows it appear that way.