The great global investor John Templeton (1912—2008) said that the four most dangerous words in investing are “This time it’s different.” In more than 30 years of managing money I have witnessed many a shift in market sentiment. It lurches from irrational exuberance (as with tech stocks a decade ago) to irrational gloom (bank stocks in March). I just don’t accept today’s gloomy view.

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— Is Recession Normal? No - Forbes.com