More Hot Links for Weekend Reading… Irrational Exuberance making a comeback in the rally?  (NYT) Surprise!  Jim Grant (Interest Rate Observer) is bullish.  (InfectiousGreed) Saltwater vs Freshwater schools of macroeconomic thought, redux.  (BronteCap) This weekend’s big story: The David K. Levine response to Krugman’s failure of economics piece.  (HuffingtonPost) Survivor Bias as it relates to…