Why does PowerPoint Presentations that Changed the World rank so high on the list of books that will never be written? Perhaps the clue’s in the title.
PowerPoint has been with us for over twenty years but during that time it has gained more of a reputation for sending the world to sleep than changing it.
Great orators, past and present, have managed to get by quite nicely without it – preferring instead to weave their magic with words alone. Would Nelson Mandela’s statement at the opening of his trial have been more powerful, or Martin Luther King’s “I have a dream” speech more moving if they’d been delivered as PowerPoint presentations? I think not.
Riffling through his collection of clip-art, and desperately entering multiple search terms in Google, Churchill would have struggled in vain to find a picture of an “iron curtain” to accompany his famous speech. Time pressure would have forced him to abandon his strikingly original idea in favour of something more literal, mundane and attainable, like a brick wall, or a barbed-wire fence.
I just broke off writing for a moment to try the experiment myself. Googling the phrase “iron curtain” produced the image below, which is clever but understandably fails to depict the paradoxical nature of something both soft and hard at the same time. Not surprising really because the brilliance and power of Churchill’s image come from the fact that it’s literally impossible.
It’s what rhetoricians call an oxymoron: that is, a contradiction in terms – a sort of condensed paradox. Other well-known examples of this figure of speech are “darkness visible”, “deafening silence”, and “bitter sweet”.
At first sight oxymorons like these may appear to be little more than a bit of clever, but meaningless, word play. But a second more thoughtful and less literal look often reveals a poetic truth or insight – one that captures not just the look of an experience, but its feel.
How many of us have inadvertently created a deafening silence by opening our mouth and putting our foot in it? Or had a bitter sweet experience during the course of an intense, but ill-starred love affair?
Images in PowerPoint slides are limited by their literalness – whereas the only limitation on an image conjured up by words is our imagination. Mental images aren’t confined and restricted by frames either – they don’t have edges. So in our mind’s eye we can begin to appreciate the full enormity, and sweep, of Churchill’s monumental “iron curtain” as we watch it descend “across the Continent”.
The images that words evoke in our minds are not just pictorial either – they are multisensory. We feel the soft unyielding hardness of the iron curtain in our bodies – it doesn’t just help us understand the tragedy of a divided postwar Europe intellectually, it helps us feel it too.