At its heart, the book is a history of the Soviet Union, the most comprehensive reorganization of human society ever attempted by a nation-state. This is the story of how the agitation of Karl Marx and Friedrich Engels, two mid-nineteenth-century European thinkers and writers, led to a great and terrible world religion that brought down a mighty empire, consumed the world in conflict, and left in its wake a devastation whose full costs can only now be tabulated.

    The meeting -- which lasted ten minutes -- did not go well. Their loud and aggressive confrontation became the stuff of instant legend, but precisely what happened during that brief confrontation remained for decades the subject of intense disagreement.An engaging mix of philosophy, history, biography, and literary detection, Wittgenstein's Poker explores, through the Popper/Wittgenstein confrontation, the history of philosophy in the twentieth century. It evokes the tumult of fin-de-siécle Vienna, Wittgentein's and Popper's birthplace; the tragedy of the Nazi takeover of Austria; and postwar Cambridge University, with its eccentric set of philosophy dons, including Bertrand Russell. At the center of the story stand the two giants of philosophy themselves -- proud, irascible, larger than life -- and spoiling for a fight.