Wittgenstein’s thought is divided into early and late Wittgenstein. There was a radical break between them. The early W. said that statements, unless they are of logic or maths, only have meaning if they refer to facts. This stimulated other philosophers into Logical Positivism which said just about the same thing: ‘Facts’ have to be verifiable. But the later W. then did an about-turn and said that words mean what…