The Soviet Union is gone. The Berlin Wall has crumbled. And, in his own words, the most dynamic force for capitalism today is the Chinese Communist Party. But Tariq Ali still keeps the faith. At 68, the Duracell public intellectual may not be in his fiery, street-fighting years any longer; but he remains a believer in Marxism - not as a state religion but as a grand idea to change the world - even though talking about it gives him the feeling of discussing "a lost, submerged continent like the Atlantis."