It didn't work at all on my (admittedly old) version of Firefox.
I suspect the author made the slideshow to display on his/her own system, and generously shared it publically as an afterthought.
I suspect the author made the slideshow to display on his/her own system, and generously shared it publically as an afterthought.
Edit: Ooooh, found a button that actually does something. Apparently you have to use the scrollwheel, space or the arrow keys. Just clicking on things doesn't seem to work. Hooray for modern UX design.
He's used Reveal.js[1], a presentation/slideshow tool in JS. Can use node.js if you want to have speaker notes/etc too.
I agree about the near-uselessness of this form of communication. But we should blame the submitter for that.