Robert Paul Wolff comments; an excerpt:

Let me begin with the distinction, which I am sure I have several times drawn before on this blog, between two very different images of progressive or transformative political action: brain surgery and a landslide. If you think that radical political action is like brain surgery, then you will suppose that it is a precise and delicate matter in which it is desperately important to perform the operation in precisely the correct manner – one wrong move can leave the patient paralyzed or, worse still, dead. For the past 200 years, a good deal of debate on the left seems to have been motivated by this image of political action. I saw this up close at the University of Massachusetts almost 50 years ago when five young Marxist economists were hired simultaneously into tenured positions in the economics department and almost immediately split into three factions.

The alternative view, to which I subscribe, is that social change or political action is like a landslide. I like to compare the modern civil rights movement in the United States to an enormous landslide down the side of a mountain. Here comes a tremendous boulder – Fannie Lou Hamer. Then a huge tree uprooted and tumbling down the mountainside – Malcolm X. Then an entire outcropping of rock that lets loose – Martin Luther King, Jr.

Now there are two things about a landslide. The first is that it does not consist only of these highly visible and very notable objects – the boulder, the tree, the outcropping. If those are the only things that roll down the side of the hill, then although they will be quite striking as they tumble down, the hill, when they are all done falling, will not be transformed. The landslide also includes middle size boulders, rocks, pebbles, small trees, bushes, twigs, clots of dirt, even little bits of dirt. All of that taken together is the landslide and when the dust has settled the entire side of the mountain is changed forever.

The second thing about a landslide is that more than anything else what matters is what side of the mountain it takes place on.