In Wittgenstein in Exile, James Klagge proposes a new way of looking at Wittgenstein--as an exile--that helps make sense of this. Wittgenstein’s exile was not, despite his wanderings from Vienna to Cambridge to Norway to Ireland, strictly geographical; rather, Klagge argues, Wittgenstein was never at home in the twentieth century. He was in exile from an earlier era--Oswald Spengler’s culture of the early nineteenth century.