I am not so sure how universal this is if it varies between 7ms and 470ms, the article says &quot;there is variation but it&#x27;s minuscule&quot;, to me a two-order of magnitude variation is all but small.<p>And growing up in Europe and moving to North America I can definitely feel that the &quot;polite&quot; amount to pause in a conversation here feels way longer, it might be small in terms of milliseconds, but if you are used to, say, 50ms, having to pause for 200ms is very, very noticeable