All these media people who write about markets need to adjust their perspectives on what a sell-off means. A 2% reduction for a market cap of 80 trillion dollars still leaves about 78 trillion dollars in the market. The way the market behaves when there's 78 trillion dollars would be very different from how it would if there were 20 trillion dollars. With volumes of these kind, the instrument becomes a currency in itself causing a sort of runaway effect that will keep it going. When everyone's money is in the market, would the market ever fall?