George Soros is not a trader like the people on ET. His bet against the British Pound was profitable not because of outside forces, but because he was an outside force. He became the market. No trader on ET can copy that.
Coupled with the fact he is not trading with scared money, but money from investors, you should think hard whether his returns were made because he is a "brilliant" trader, or had alot to do with money management and luck.