When markets react “all of a sudden” to news that’s been out there for a long time, there is a tendency for non-market people to throw their hands up and say “You see! In Barry Ritholtz‘s Washington Post column this week, he looks at the mystery of why all of a sudden, things we had been aware of for months (years) all seemingly hit the fan at once this week as the Dow dropped 1000 points…Why have markets suddenly turned so skittish? And no one on Wall Street really believed Congress would allow the debt ceiling to cause a U.S. default. So the only question is, how would an investor or a trader know that all of a sudden, these horrid ongoing news stories were going to start to matter? But having all that knowledge is far different than applying it to make (or save) money in the markets.