I suspect it may partly also be cultural for that segment of people. Repeating yourself at seminars or other academic meetings was highly frowned upon in sever

I suspect it may partly also be cultural for that segment of people. Repeating yourself at seminars or other academic meetings was highly frowned upon in several instances I've seen, it was not just greatness/respect/intrinsic etc. Perhaps sufficient greatness of attention span is a prerequisite to remember what everyone has said since the start of the meeting :-)