Why does one smoker die of lung cancer but another live to 100? The answer is "The Hidden Half"—those random, unknowable variables that mess up our attempts to comprehend the world. We humans are very clever creatures&...

Is it safer to fly or take the train? How dangerous is skydiving? And is eating that extra sausage going to kill you? We've all heard the statistics for risky activities, but what do they mean in the real world? In The Norm Chronicles...