[W]e dare not think that, just because we can do good things with
technology, it therefore threatens no radical and unconsidered
change.... What looks like freedom in the short term may constrain us
in the long term. Much the same applies to computers. We have to look
beyond the immediate activities we are inclined to praise or curse. We
have to grasp the underlying forces -- human as well as technological
-- through which society is being reshaped.