By KENNETH POSNER
Review of Grit: The Power of Passion and Perseverance, by Angela Duckworth
There’s Grit, and Then There’s True Grit
The Problem with Seeking “Flow”
By KENNETH A. POSNER
Review of The Rise of Superman: Decoding the Science of Ultimate Human Performance, by Steven Kotler
Predicting When the Mob is Smart
By KAI SPIEKERMANN
Review of WISER: Getting Beyond Groupthink to Make Groups Smarter, by Cass R. Sunstein and Reid Hastie