It’s true that attentional focus does have important effects on creative thinking
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research conducted by psychologist Eddie Harmon-Jones and his colleagues suggests that the critical variable influencing one’s scope of attention is not emotional valence (positive vs. negative emotions) but motivational intensity, or how strongly you feel compelled to either approach or avoid something.
Sure, I went through my 'J'accuse' phase. I was so angry for so long, I could hardly have a conversation without getting into an argument. And it was only when I felt I could finally distance myself from my past that I began to write about what happened - not just to me, but to lots of young people. I think my story is a cautionary tale.
The days of the Pentagon Papers debates seem long past, when a sudden transparency yielded insight into fights over war and peace and freedom and security; the transparency afforded by Twitter and Facebook yields insights that extend no further than a lawmaker's boundless narcissism and a culture's pitiless prurience.