The big challenge of website design is people clicking away to more interesting places. when you send a pitch deck without verbal explanation, you have the same challenge. Will your prospective customer or investor make it all the way to the end? Maybe presentation designers can learn from web designers?
I was brainstorming this with a client the other day. We were thinking about how to include a fake demo in the presentation. Demos always look better with the biggest possible screen shots. The result however, is a very large presentation and the viewer might not make it to the end. A possible solution: add big PREVIOUS and NEXT arrows to the left and right of the screen, maybe a counter (Demo slide 4/12) and a bit SKIP button to keep the viewer on board.
Just a random idea, I need to think more about how to add navigation that is actually useful inside a presentation.