@HealthRanger PERCEPTION FEEDBACK STATEMENT.....
27 Minutes is the Absolute LIMIT of Undivided Attention !!!
The wife & I found ourselves talking about something else and this and no longer paying attention after this point & heard U talking in the background.
Back in college BEFORE computers, the teacher acknowledged the presence of the class for the first 5 min - presented the lesson for 25 minutes; than answered several questions and dismissed the class by the time it was 45 minutes.

https://www.brighteon.com/4a3c7ba9-527f-4ae8-b890-b33889d83f63