[...] It is not enough to remain faithful to the Communist Idea: one has to locate in historical reality the antagonisms that make this Idea a practical urgency. The only true question today is this: do we endorse the predominant acceptance of capitalism as a fact of (human) nature, or does today's global capitalism contain strong enough antagonisms to prevent its indefinite reproduction? There are in fact four such antagonisms: the looming threat of ecological catastrophe; the more and more palpable failure of private property to integrate into its functioning so-called 'intellectual property'; the socio-ethical implications of new techno-scientific developments (especially in biogenetics); and, last but not least, as has been mentioned above, new forms of apartheid, new walls and slums. [...]