I'll go first: I think 90% of slides make presentations worse, not better.
Here's why:
- They give the speaker something to hide behind
- They split the audience's attention (reading vs listening)
- They encourage lazy preparation ("I'll just put my notes on the slides")
- They create a false sense of structure
The best presentations I've ever seen โ and the best ones I've ever given โ were either slide-free or used minimal visuals (a single image, a single number, a single word).
The counterargument: Complex data, technical topics, and large audiences sometimes genuinely need visual support. Fair.
But here's my test: If you deleted every slide, could you still give the talk? If not, you don't know your material well enough.
What do you think? Am I being extreme, or do you agree? ๐