I walked past Southwark Tube Station during the week and could not miss this work of art - a huge eye level bill board that said:
"If history could be folded, where would you put the crease?"
What an amazing question! Where would you put the crease? Would you crease it vertically, horizontally or diagonally? Are there other ways of creasing it?
When designing my Knowledge Cafés, I often wonder what it is that makes a really good provocative question and I am trying to write something on the subject but I feel there is a "secret sauce" that I have yet to discern.
But this question, seems to hold out a clue. Is it something to do with metaphor?