‘I gave a speech once,’ he said suddenly, and apparently unconnectedly. ‘You may not instantly see why I bring the subject up, but that is because my mind works so phenomenally fast, and I am at a rough estimate thirty billion times more intelligent than you. Let me give you an example. Think of a number, any number.’ ‘Er, five,’ said the mattress. ‘Wrong,’ said Marvin. ‘You see?’
