In my seventh lecture of the year, I found myself staring in confusion at the pad of paper on my neighbour's lap. Where was the happily humming MacBook with PowerPoint at the ready? The lecturer then walked in and proceeded to give an incredibly eloquent talk on Democratic Peace Theory, using only his deep baritone and wild gesticulations. Where was the projected slide-show? He spoke with such communicative enthusiasm that not a single word slipped out of my notes.