Looking at the state of our current financial markets it may not be uncommon to think that Karl Marx -- best known for authoring The Communist Manifesto -- may have been right all along about believing that capitalism was radically unstable; however, points out this article on the BBC, Karl was wrong about communism.
Marx welcomed capitalism's self-destruction. He was confident that a popular revolution would occur and bring a communist system into being that would be more productive and far more humane.
Marx was wrong about communism. Where he was prophetically right was in his grasp of the revolution of capitalism. It's not just capitalism's endemic instability that he understood, though in this regard he was far more perceptive than most economists in his day and ours.
More profoundly, Marx understood how capitalism destroys its own social base - the middle-class way of life. The Marxist terminology of bourgeois and proletarian has an archaic ring.
But when he argued that capitalism would plunge the middle classes into something like the precarious existence of the hard-pressed workers of his time, Marx anticipated a change in the way we live that we're only now struggling to cope with.