Hey I'm Cramer. Welcome to Mad Money. Welcome to Cramerica other DNOW my friends I'm just trying to save you some money.My job is not just to entertain but to put days like today into context. So call me one 800 743 CNBC or tweet me at Jim Cramer. So Palantir fails to rally in response to a great quarter.And we all decide that it's time to jump ship, because the entire stock market must be overvalued. Silly as it sounds, I think that actually is what drove today's action. The Dow slipping 251 points, S&P lo ...