I watched this years ago and really enjoyed it. One of the main lessons I took from it is basically, have almost 0 text on your slides. You should not be reading your slides, the audience should not have to read your slides. The slides should supplement what you are speaking about, not vice versa.
Any time I see a wall of text on a presentation, I know I can probably tune out and not miss much.
This is great advice for the right context, but can be the wrong advice for different situations.
If the slide deck is meant to be something that can be shared around and make sense without you, it needs to have a lot of text on the slides. Even putting it in the speaker notes doesn’t work.
So make sure you know your audience and the context (also important presentation advice)
This is a case for their being two slide decks. Or rather, that slides can be used as a shareable graphic-heavy document OR as an aid to giving a talk, but the same deck can’t be good at both purposes at the same time.
Sounds better in theory than in practice. Making two separate slide decks and then hopping everything makes sense when you share one after people expect the other isn’t good.
If you have to serve both uses, text goes on the slides. If you’re primarily speaking then just include the speaker notes and hope it makes sense. If the slides will be shared primarily, text goes on the slides and you just deal with it while presenting.
Those talks don’t have too much text on slides, yet they can still be shared as text by including the speaker’s script aligned with each slide. They also have online video versions for comparison.
If you need to share the idea of the talk using just the slides then that’s a totally different problem. You shouldn’t make the slides worse for people who can attend the talk.
One downside to not having much text on your slides is that the slides alone are then not as useful as a reference to attendees later.
When I do low-text slides anyway, sometimes I've used the "notes" field of the presentation program to write out complete text of a version of the speech, for my eyes only. Then I don't read the notes while presenting, but I've gone through that writing exercise, to think through the content and presentation more rigorously than is necessary to slap some headings on slides.
If you're analyzing a code snippet, sure, makes sense. But have bullet points of long sentences is just serving to distract the audience from what you're saying.
At 27:50, he relays a story about a grad student who did an experiment to see what the audience retained better: the slides, or the presenter's words. It seems the slides won out. So apparently the slides are the star of the show, whether you like it or not.
Any time I see a wall of text on a presentation, I know I can probably tune out and not miss much.