Interesting article that buried the lede. The part about the criticism of the positivity ratio was particularly interesting because a co-author wrote the brill

Interesting article that buried the lede. The part about the criticism of the positivity ratio was particularly interesting because a co-author wrote the brilliant parody of post-modernism published in one of its seminal journals, Social Text (http://en.m.wikipedia.org/wiki/Sokal_affair http://en.m.wikipedia.org/wiki/Sokal_affair). A critique by Sokal is prima facie intriguing. I need to go read the original article but the Wikipedia summary is fascinating (http://en.m.wikipedia.org/wiki/Critical_positivity_ratio http://en.m.wikipedia.org/wiki/Critical_positivity_ratio) in specific, Fredrickson and Losada appear to have chosen functional parameters that yield good results, not ones based on evidence.