No it cannot, as it stands at present. For it to continue, we must have resources, many of which we are running out of. However, with a combination of ever-more-observant conservation practices, increase in technology, and expansion via space exploration, it might work. However, there is also the question of the lack of political parity for billions throughout the world, brought on by capitalistic tendencies (read: lobbyists for the rich, few for the poor), coupled with the parasitic banking industry, which has to be drastically revamped or eliminated. Banks do very little for society. If we continue with the status quo, however, Marx' formula (a capitalistic society must first exist before a communist society can be put into its place -something that the world has never seen), may just happen. Sorry if this was too verbose, but great question, YoungPhilospher8.