Being asked to give another presentation on whatesoever topic and to deposit my slides on whatsoever intranet, the famous quote of John Sweller came to my point
It is effective to speak to a diagram, because it presents information in a different form. But it is not effective to speak the same words that are written, because it is putting too much load on the mind and decreases your ability to understand what is being presented.
So, as I tend to use only slides with cartoons and figures (but no bullet points which are in my notes only) these illustrations are rather useless as a stand-alone file at any Ilias platform. In other words
if your presentation visuals taken in the aggregate (e.g., your “owerPoint deck”) can be perfectly and completely understood without your narration, then it begs the question: why are you there?
I remember a lecture by my doctoral advisor who came in the lecture room with just 1 glass slide in his shirt pocket … More intelligent comments about that issue at presentationzen.com