Marxism, Atomism, Organicism

In Organicism, a Whole and its Parts are contemporaneous, and remain so even when the latter forgets the former, and they interpret themselves as Atoms.  So, Rousseau's concept of human society is Organicist, insofar as he conceives it as in a condition of original togetherness, and as governed by a General Will that transcends the sum of its parts. However, Marx is an Atomist, though of an unusual variety.  That position is established in his early advocacy of Lucretius, via the interpretation of the 'Swerve' of the Atoms of the latter as Dialectical, thereby anticipating the Dialectical Materialism of his mature period.  Thus, according to Marxism, while human society achieves Wholeness in the arrival of Socialism, it is not contemporaneous with its Parts in the pre-history of Socialism.  So, the challenge that Darwinism presents to Marxism is a more comprehensive concept of History, in which, from the outset, the Whole and the Parts are both present.