Asimov also provided some of his philosophy of history in his storytelling. History fascinated him. He almost took his graduate degree in history instead of chemistry; his customary method of developing both his fiction and his non-fiction was historical; and a number of his non-fiction books are concerned with history (of his 470 books Asimov listed 19 under "history"). Some of what Asimov says about history comes from his model, Gibbon's
Decline and Fall of the Roman Empire;
little seems to derive from Marxism or whatever impressions of it were in the air when the
Trilogy
was being conceived and created, and a good deal seems to be Asimov's own observations. Government, for instance, never is what it appears to be: in the
Trilogy
figureheads and powers behind the throne proliferate. Every innovation rigidifies into sterile tradition, which must, in turn, be overturned: the grip of the Encyclopedists, for instance, must be broken by Salvor Hardin, and the political
power of the Mayor must be broken, in its turn, by Hober Mallow, and the economic power of the Traders must then be modified by the incorporation of the independent traders, and so on. There is, to be sure, a narrative necessity to keep the series going, but the reader cannot ignore the inevitable feeling of continual change, which seems a philosophy: one generation's solution is the next generation's problem. Asimov probably would have agreed that this is the case in real life.