I disagree with the point that "there's no alternative to crafting a well-structured presentation". I'd argue that a jupyter notebook or equivalent (e.g. pweave) is 1000X better than powerpoint.
Re:The Improbable Origins of PowerPoint
by TuringTest on Friday November 03, 2017 @10:58AM
(#15619640)
That sentence was qualified by "in lecture format", i.e. with a teacher exposing words and images with a projector, like you do with PowerPoint.
Jupyter notebooks, like explorable explanations, require the audience to interact with the tools and not merely be passive watchers, which was the context for that sentence.
http://worrydream.com/ExplorableExplanations/
Of course that requires providing the spectators with the capacity to interact with the content at their own pace.
If you want to use the lecture format, there's no alternative to crafting a well-structured presentation a la PowerPoint. There could be better tools that could help more in finding the right structure, but the end result will look largely the same - a sequence of images and text that convey the main ideas in an easy-to-grasp format.