"Nobody knows for sure" what will cause stocks to collapse, but "the earnings may disappoint. We had, essentially, very poor sales from McDonald's. Now, McDonald's is a very good indicator of the global economy. If McDonald's doesn't increase its sales, it tells you that the monetary policies have largely failed in the sense that prices are going up more than disposable income, and so people have less purchasing power."
Marc Faber is an international investor known for his uncanny predictions of the stock market and futures markets around the world.Dr. Doom also trades currencies and commodity futures like Gold and Oil.